A Swedish radio journalist, who also held British citizenship, was shot dead in Kabul this morning by an unknown gunman.

Swedish ambassador Peter Semneby said: "Unfortunately we just have received confirmation that Nils Horner, who was correspondent for Swedish national radio, was shot and killed in Kabul.

"We understand he had British nationality in addition to his Swedish nationality. His family has been informed."

"Nils was one of our absolute best and most experienced correspondents and what has happened to him today is terrible," said Swedish Radio's director-general, Cilla Benk.

A spokesman for Kabul police said the man died in the Emergency Hospital, which is run by an Italian organisation.

He said Mr Horner's driver and translator were being questioned but no arrests had been made.

A witness said the 51-year-old journalist was standing outside a Lebanese restaurant with his driver and translator when two men wearing "Western clothes" approached and one shot him at point blank range in the back of the head.

The area where the shooting happened is home to several embassies, supermarkets and cafés frequented by foreigners.