A blazing wheelie bin was pushed against a house door trapping two people inside - and the police want to know who is responsible.
At around 7.10pm on Wednesday the burning bin was pushed against a door of a house in Keats Close.
A man and a woman inside the property were able to get out uninjured and removed the bin away from the property before emergency services attended.
Investigating officer, Det Con Shay Harper, from Aylesbury Force CID, said: “I am appealing for witnesses following this incident of arson with intent to endanger life.
“If you have any information about the incident or saw anyone acting suspiciously at the time in the area please speak to police.
“The consequences could have been tragic if the occupants inside the house had not noticed the bin on fire outside.”
If you have any information about the incident please call Det Con Harper via the 24-hour Thames Valley Police enquiry centre on 101.