Horror at Mecca's Grand Mosque after crane crashes into building during Friday prayers - killing dozens of worshippers

At least 87 people have been killed and more than 185 wounded when a crane crashed into the middle of Saudi Arabia's Grand Mosque in Mecca earlier today.

It is believed the crane had been blown over by strong winds and storms, breaking part of the roof and causing rubble to fall on those praying below.

he Saudi Civil Defence authority confirmed the incident on Twitter and gave details of the number of casualties.

General Suleiman al-Amr, director general of the Civil Defence Authority, told al-Ikhbariya television 183 people were injured.

"All those who were wounded and the dead have been taken to hospital. There are no casualties left at the location," he added.