Flames ripped through a couple’s home after a firework was pushed through their letterbox in a suspected arson attack.
A 56-year-old man is fighting for his life in hospital following the horrific incident in Tile Cross, Birmingham, at about 11pm on Thursday.
He has been named locally as Tony Nicholls, a former hardware shop worker.
His girlfriend, 50, identified only as Marie, is feared to have broken both legs after she jumped from a first floor window to escape from the flames.
Detectives investigating believe it was an arson attack, with the blaze started by a firework in the hallway.
They said Mr Nicholls is in a critical condition having suffered serious burns and smoke inhalation.
Neighbours have said they believe a number of rockets were shoved through the couple’s front door as a number of loud bangs were heard.
Janet Mahoney, 73, said: ‘We heard fireworks. It was lots of fireworks as well. I can’t believe somebody would stand there feeding fireworks through a letterbox.
‘Over a two day period somebody did the top windows then the bottom windows. They did not deserve this.’
Officers are making house to house enquiries and examining CCTV footage in the area.
They have appealed for anyone who witnessed anything suspicious to come forward.
Detective chief inspector Sarah Burton said: ‘The occupants of the address are in a critical condition in hospital and we are urging anyone who has information to help us trace those responsible to contact us.
‘The address remains sealed off while forensic examinations are conducted.’