Explosion, gunfire heard in Kabul - Reuters witness, police

An explosion and sustained gunfire resounded in an upscale residential neighbourhood in the south of the Afghan capital Kabul on Friday and police said insurgents had made their way inside a building.

"Some insurgents have entered a building. Their target is not clear yet," said Hashmat Stanikzai, a spokesman for the Kabul police chief.

(Reporting by Mirwais Harooni, Writing by Maria Golovnina; Editing by Ron Popeski)