TWO people have been arrested on suspicion of trying to burn a house down twice in one night.
The man and woman were held after emergency services were called to an unoccupied property in Helmsley Street, Hartlepool.
Fire crews first raced to the house at around 11pm on Saturday night after a report of a fire at the front door.
But the small blaze had burned itself out when firefighters from Stranton Station arrived.
The brigade was called out again just a few hours later to the same address at around 1.30am on Sunday.
This time they discovered fire damage to a ground floor front window although again the fire had gone out by itself.
The fire brigade said the causes of both fires is believed to be deliberate and police are appealing for witnesses to come forward.
The suspects have been arrested on suspicion of arson with intent to endanger life.
Fire watch manager Andy Robinson said: “There will be further investigations but at this stage the cause is believed to be deliberate.
“The police have been informed about both incidents and both they and ourselves will be carrying out further investigations.”
Inspector Ian White of Cleveland Police said: “We are appealing for witnesses to come forward or anyone with any information.”
Contact Detective Sergeant Joanne Wright on the non emergency 101 number.