A remote part of southwestern Pakistan has been struck by a 7.2 magnitude earthquake, close to the border with Afghanistan.
Tremors were felt as far away as Lahore, New Delhi in India and Camp Bastion, the main British military base in Afghanistan.
The epicentre was close to Dalbandin, a sparsely populated area and one of three Pakistani bases used by US and allied forces to support the military campaign in Afghanistan.
Initial reports suggest no fatalities, though a number of people were injured by falling debris.
In the major port of Karachi, 400 kilometres away, people were thrown from their beds as the quake hit.
A more comprehensive evaluation of the damage caused will be made when rescue teams arrive in the area.