Reports that a father-of-seven living in Manchester has been killed in Libya are being investigated by the Foreign Office.
Friends of Khaled Attghdi, from Whalley Range, believe he was shot in the oil port of Brega on Wednesday. His family are said to be distressed.
He travelled to Libya last week to help relatives caught up in the unrest.
A Foreign Office spokesman said: "We are aware of reports and urgently investigating."
Nadia Handi, a close family friend, told the BBC Mr Attghdi's wife received a phone call on Wednesday, saying her husband had been killed.
"She can't talk properly," Ms Handi said. "She is just crying."
"All the children are crying. Nobody believes it. Everything is not fair, it is horrible."
She said the family had supported Mr Attghdi travelling to Libya during the uprising against Colonel Muammar Gaddafi.
Another of his friends, Hakim Mezujhi, said: "He was loyal to his family, loyal to his friends over here.
"He helped lots of friends and brothers set up their businesses and he was the kind of person you don't want to lose."
It is thought thousands of people have been killed in violence between Col Gaddafi's army and anti-Gaddafi protesters.