Armed police were called after a gunman entered a mosque in London during Ramadan prayers and fired a weapon outside.
The gunman walked into the mosque as terrified worshippers were praying.
The incident happened at Seven Kings Mosque in Ilford, east London, on Thursday evening but police say they are not treating it as a terror incident.
The armed man, said to have had his face covered, was reported to have entered the mosque before being chased out by worshippers and is then understood to have fired his weapon outside the building.
The mosque's imam Mufti Suhail said: "There was a firearm incident outside Seven Kings Mosque tonight during Ramadan night prayers.
"The suspect ran from the scene when stopped by brothers standing guard at the mosque.
"A shot was fired which fortunately did not hit anyone."
Police believe the weapon was a blank firing firearm.
London's Metropolitan Police Service said: "Police were called at 10.45pm on Thursday to reports that a man, believed to be in possession of a firearm, had entered a mosque on High Road in Seven Kings.
"The man was ushered outside of the building by those inside. A gunshot was then heard.
"Officers, including firearms officers, attended. There were no reported injuries or damage to the building.