The black box of a Pakistani passenger aircraft which crashed Wednesday in Margalla Hills near Islamabad has been retrieved, officials said Saturday.

The cockpit voice recorder and black box of the crashed plane have been recovered, director-general of civil aviation authority Junaid Ameen was quoted as saying by Geo TV.

The black box will be sent to France or Germany to retrieve the data, he added.

A private Pakistani airline flight from Karachi crashed July 28 amid heavy rain in the thickly wooded Margalla Hills near Islamabad, killing all 152 people on board the plane.