The first earthquake, magnitude 7.8, struck at 4:17am (01:17 GMT) on Monday and was centred in the Pazarcik district of Kahramanmaras province. It was followed by dozens of aftershocks.

Less than 12 hours later, a second, magnitude 7.6, earthquake struck the same region.

Drag to the right to see buildings in Islahiye, Turkey, before the earthquake, and to the left to see the after-effects [Handout: Maxar Technology via Reuters]

Drag to the right to see buildings in Islahiye, Turkey, before the earthquake, and to the left to see the after-effects [Handout: Maxar Technology via Reuters]

Buildings in Nurdagi, Turkey, before and after the earthquake [Handout: Maxar Technology via Reuters]

Downtown Islahiye before (drag right) and after the earthquake [Handout: Maxar Technology via Reuters]

Buildings in Nurdagi before and after the earthquake [Handout: Maxar Technology via Reuters]

Downtown Nurdagi before and after the earthquake [Handout: Maxar Technology via Reuters]