BBC News:

At least 87 people have died after a crane collapsed on the Grand Mosque in the Muslim holy city of Mecca, the Saudi Arabian government has said...

Images from the scene showed part of a huge red crane crashed through the mosque's roof. The cause of the collapse is not known.

New York Times:

The Al Jazeera television network said the crane had fallen in the midst of a severe rainstorm, suggesting weather may have played a role.