Czech police say they are dealing with a spate of copycat shooting threats after a lone gunman killed 14 people at a university in Prague.
Seven people were investigated on Christmas Day alone for making dangerous threats – typically declaring "now it's my turn", according to police – or glorifying the Prague shooting.
Police said on Thursday they are tracking more than 60 social media posts in which people claim they support or want to emulate the gunman, who also injured two Emiratis in the December 21 attack.
Separately, Czech media reports on Thursday said police had found a letter from the gunman confessing to the killing of a father and daughter days before the mass shooting.
Police had linked the two events based on ballistic evidence from Charles University, where the man killed himself after being cornered by police.
Thirteen people were killed in the gunfire and another later died in hospital. The two injured Emiratis have had surgery for their injuries and received a call from Sheikh Hamdan bin Mohammed, Crown Prince of Dubai.
Czech police are themselves being investigated by an inspectorate for their handling of Thursday's events, although Interior Minister Vit Rakusan has defended their response.

The shooter, widely identified as David Kozak, 24, was not known to police and had no apparent links to international terrorism or extreme ideology.
While his motive is not clear, it has emerged that he had a licence for eight weapons, including two long guns, raising questions about the Czech Republic's relatively liberal gun laws.
Investigators meanwhile "have their hands full" as they chase down and arrest the authors of online posts linked to the shooting, according to police in the South Moravia region.
One suspect allegedly posted online about planning a shooting in an entertainment district in Brno, the Czech Republic's second city.
Although no weapon was found and the person said the threat was a hoax, the poster could be prosecuted for "spreading alarmist news". A second suspect who posted about joining in a Brno attack was also arrested.
In another case, a 51-year-old woman was tracked down at her home in Blanensko after allegedly sending police a message in which she praised the Prague shooting.
A third case concerned a threat to ticket inspectors on Prague public transport, with the suspect under investigation despite withdrawing the prank message.
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Engine: 2.0-litre 4cyl turbo
Power: 248hp at 5,200rpm
Torque: 400Nm at 1,750-4,000rpm
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• Supports military aid for Ukraine, unlike other eurosceptic leaders, but he will oppose its membership in western alliances.
• A nationalist, his campaign slogan was Poland First. "Let's help others, but let's take care of our own citizens first," he said on social media in April.
• Cultivates tough-guy image, posting videos of himself at shooting ranges and in boxing rings.
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- 600-seat auditorium
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10 tips for entry-level job seekers
- Have an up-to-date, professional LinkedIn profile. If you don’t have a LinkedIn account, set one up today. Avoid poor-quality profile pictures with distracting backgrounds. Include a professional summary and begin to grow your network.
- Keep track of the job trends in your sector through the news. Apply for job alerts at your dream organisations and the types of jobs you want – LinkedIn uses AI to share similar relevant jobs based on your selections.
- Double check that you’ve highlighted relevant skills on your resume and LinkedIn profile.
- For most entry-level jobs, your resume will first be filtered by an applicant tracking system for keywords. Look closely at the description of the job you are applying for and mirror the language as much as possible (while being honest and accurate about your skills and experience).
- Keep your CV professional and in a simple format – make sure you tailor your cover letter and application to the company and role.
- Go online and look for details on job specifications for your target position. Make a list of skills required and set yourself some learning goals to tick off all the necessary skills one by one.
- Don’t be afraid to reach outside your immediate friends and family to other acquaintances and let them know you are looking for new opportunities.
- Make sure you’ve set your LinkedIn profile to signal that you are “open to opportunities”. Also be sure to use LinkedIn to search for people who are still actively hiring by searching for those that have the headline “I’m hiring” or “We’re hiring” in their profile.
- Prepare for online interviews using mock interview tools. Even before landing interviews, it can be useful to start practising.
- Be professional and patient. Always be professional with whoever you are interacting with throughout your search process, this will be remembered. You need to be patient, dedicated and not give up on your search. Candidates need to make sure they are following up appropriately for roles they have applied.
Arda Atalay, head of Mena private sector at LinkedIn Talent Solutions, Rudy Bier, managing partner of Kinetic Business Solutions and Ben Kinerman Daltrey, co-founder of KinFitz
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At a glance
Global events: Much of the UK’s economic woes were blamed on “increased global uncertainty”, which can be interpreted as the economic impact of the Ukraine war and the uncertainty over Donald Trump’s tariffs.
Growth forecasts: Cut for 2025 from 2 per cent to 1 per cent. The OBR watchdog also estimated inflation will average 3.2 per cent this year
Welfare: Universal credit health element cut by 50 per cent and frozen for new claimants, building on cuts to the disability and incapacity bill set out earlier this month
Spending cuts: Overall day-to day-spending across government cut by £6.1bn in 2029-30
Tax evasion: Steps to crack down on tax evasion to raise “£6.5bn per year” for the public purse
Defence: New high-tech weaponry, upgrading HM Naval Base in Portsmouth
Housing: Housebuilding to reach its highest in 40 years, with planning reforms helping generate an extra £3.4bn for public finances
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This article is part of a guide on where to live in the UAE. Our reporters will profile some of the country’s most desirable districts, provide an estimate of rental prices and introduce you to some of the residents who call each area home.
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By committing to at least one of these daily, you can bring more gratitude into your life, says Ong.
- During your morning skincare routine, name five things you are thankful for about yourself.
- As you finish your skincare routine, look yourself in the eye and speak an affirmation, such as: “I am grateful for every part of me, including my ability to take care of my skin.”
- In the evening, take some deep breaths, notice how your skin feels, and listen for what your skin is grateful for.
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Our legal consultant
Name: Hassan Mohsen Elhais
Position: legal consultant with Al Rowaad Advocates and Legal Consultants.
Tips for job-seekers
- Do not submit your application through the Easy Apply button on LinkedIn. Employers receive between 600 and 800 replies for each job advert on the platform. If you are the right fit for a job, connect to a relevant person in the company on LinkedIn and send them a direct message.
- Make sure you are an exact fit for the job advertised. If you are an HR manager with five years’ experience in retail and the job requires a similar candidate with five years’ experience in consumer, you should apply. But if you have no experience in HR, do not apply for the job.
David Mackenzie, founder of recruitment agency Mackenzie Jones Middle East