Parts of London's Leicester Square are on lockdown as a hostage situation is reportedly unfolding in a restaurant, according to several reports on Twitter.
Police appear to have cordoned off the streets outside Bella Italia restaurant, where the situation isreportedly taking place.
According to the BBC, a man who claims to have a knife is holding a woman hostage inside the restaurant. Two other people are reportedly inside.
London police have confirmed that the situation is not terror-related.
"Officers are on scene and attempting to engage with the man and resolve the situation. This is not terrorist related,” a Metropolitan Police Service spokesman said, according to ITV.
"Police reportedly negotiating with a man who's holding a knife to a woman's throat," Channel Nine Australia's Tom Steinfort tweeted.
Numerous photos of police in riot gear began circulating social media shortly after the hostage situation broke out Wednesday night in London.