Armed police sealed off a mosque in London after a man was fatally stabbed on a nearby street and the attackers reportedly fled towards the place of worship last night.

Axar.az reports citing Dailymail that, the victim, who was believed to be in his early twenties, was found with stab wounds in a housing block in Cunningham Place, Westminster, at about 6.15pm.

He was treated at the scene with help from London Ambulance Service paramedics but later died in hospital.

Officers searching the area for suspects sectioned off the London Central Mosque near Regent's Park for more than five hours this evening.

Video from outside the mosque shared on social media showed armed police at the gates as a helicopter circled overhead.

The cordon was finally moved at around 11.30pm, with the roads reopened and armed police officers leaving the scene.