A young British tourist was found fatally stabbed in the early hours after a brawl in the popular resort of Malia on the Greek island of Crete, according to Greek news website Eleftherotypia.
Citing AFP news agency, it reports that the male victim, aged 19 or 20, was found at around 3am, after a fight involving up to 30 Britons.
A police source reportedly told AFP they were looking for a single attacker.
More top news
Thousands of people have linked hands on Westminster Bridge in a show of solidarity - one week after the terror attack in the capital.
PC Keith Palmer, 48, stabbed by Khalid Masood while on duty in the grounds of the Palace of Westminster last Wednesday.
Engineering firm CH2M won the £170 million contract but have pulled out of phase two of the project over alleged conflicts of interest.