A serial arsonist is being hunted by police after setting fire to two houses and a car.
All three arsons have taken place in Accrington over the past two weeks between the hours of 6am and 9am.
Detective Inspector Eric Halford of Blackburn CID said the incidents pose a 'legitimate danger to life' and believes all three have been committed by the same offender.
The most recent incident took place at around 8.25am on Sunday, January 4.
Police said it is believed the offender again poured accelerant through the letterbox of an address of Lodge Street before setting it alight.
The two occupants, both aged 23, were asleep upstairs and were woken by smoke alarms before attempting to tackle the front door blaze.
The first incident happened at around 7.20am on December 21 when an offender set a small fire underneath a vehicle at an address on Avenue Parade.
The second incident happened at around 6.35am on December 28 when an offender poured accelerant through the letterbox of an address on Manor Street and set it on fire.
The Observer reported last week how owner Riyasat Aly, 48, said he and his family were 'lucky to be alive' and was forced to flee the home with his wife Safiya Aly and their three children aged 18, 14 and 12.
DI Halford said on each occasion the alarm was raised early enough to prevent any major damage or harm.
He said: “We are taking these offences very seriously due to the fact that they all posed a legitimate danger to life and as such we are seeking the public’s help in quickly identifying the offender.
“Due to the small geographic area they have been committed in, the fact they are all committed on Sunday mornings and the timings of the offences we believe these to be linked.”
Detectives are keen to trace a man who was seen near the most recent incident on January 4. He is described as white, in his late twenties to early thirties, of medium build with cropped or shaven hair which is dark in colour.
He is also believed to have been wearing a blue hooded top.
DI Halford added: “Clearly the Sunday is of relevance to these offences and it is most likely they are being committed by someone going about their routine activity on that morning.
“Maybe they are going to or returning from work or stay over at a specific address on that day and in that area and we are asking people to help us identify anyone that may fit this profile”.
CCTV footage in the Manor Street area has also captured another man that detectives would like to speak to. He is wearing what appears to be a very dark hooded top and is carrying a white carrier bag.
Anyone who has any information can contact DC Russell on 01254 353562 or alternatively call Lancashire Police on 101.