Four people have been arrested and are in custody in connection with an incident in Workington last night (Saturday April 11).
Police were called at 11.20pm following a report of an object that had been set alight being thrown at a house in Pearl Road, Salterbeck.
Nobody was hurt and there was no need for the fire service to be called.
Investigations by officers have led to the arrest of three men, aged 22, 19 and 22 and a boy, aged 14, in connection with the incident.