In Mecca, a crane being used in a construction project intended to expand the Grand Mosque killed 87 people and injured over 180 others when it collapsed and fell through the mosque's roof. At the time, the area was undergoing bad weather, including wind, rain and lightning. The construction is being done in preparation for this year's Hajj pilgrimage, which occurs later this month. The Grand Mosque surrounds the Kaaba, a shrine around which the pilgrims walk during the Hajj.
Read more at BBC News, The Guardian, Russia Today, Al Jazeera and the Daily Mail.
UPDATE: Most of the links are now indicating 107 people killed and 238 injured.