Several people were stabbed in a Tube station in east London on Saturday, the BBC reported.

The attack is being treated as a "terrorist incident", the Met Police has said.

Police were called to reports of people being attacked at Leytonstone station just after 19:00 GMT. The knifeman reportedly shouted "this is for Syria".

A man was arrested after being Tasered by police. One man suffered serious knife injuries while two others received minor injuries.

Metropolitan Police counter-terrorism detectives are investigating the case.

Downing Street said it was monitoring the situation closely.

The Met said the suspect was reportedly threatening other people with a knife.

A witness told the BBC he saw a man holding a knife, about 3ins (7.5cm) long, standing over another man who was lying on the ground, and people running out of the Central Line station.

Sources: MENA