Three teenagers were robbed at gunpoint while playing Pokémon Go in a London park, Metropolitan police have said.
The teens, aged 15, 16 and 18, were playing the popular game at Whittington Park in the Islington area of London on Tuesday evening when they were approached by three men with their faces covered.
One of the men demanded that they handed over their phones while another pulled what appeared to be a handgun from his waistband and pointed it at the teenagers.
All three teenagers gave their phones to the robbers and were said to be unharmed, but shocked.
Just 30 minutes earlier a 24-year-old man also reported being robbed by three men in the same park, one of whom held what the victim thought to be a silver handgun to his stomach.
He too handed over his possessions and remained unharmed.
Metropolitan police believe the same three suspects, all described as Asian males aged 16-17, were responsible for both incidents because methods used are identical, and the both incidents happened in close proximity.
Islington based officer PC Kevin Yeung said that robberies where a gun is shown are very rare in London, and police are keen to track down the culprits.
"These were really shocking attacks on young people walking around a much loved park," Yeung said.
Yeung appealed to anyone who was in the area at the time and might have seen anything that could lead police to the robbers to call Islington CID on 020 8345 0262 or give information anonymously by contacting Crimestoppers on 0800 555 111.
Since Pokémon Go's popularity exploded earlier this month, police around the world have urged young people to remain vigilant while playing it in public spaces.
In Mumbai, police released a GIF to remind people of the dangers of playing the game near roads, and police in the UK have released a series of endearing warnings including asking players to consider what real dangers could be lurking down an alleyway alongside digital characters.
Meanwhile, police in the US have used the "lure" feature of the game to attract criminals they're trying to catch with rare Pokémon and a group of teenagers allegedly robbed people they found using the game.