Some heartbreaking Pictures Reveal Iran and Iraq Earthquake, the Deadliest so far of 2017

A huge rescue effort is under way after a powerful earthquake struck Iran's mountainous border with Iraq, killing more than 400 people and injuring more than 7,000.

A woman mourns as she holds the body of her daughter, who died in an earthquake, in Sarpol-e-Zahab, western Iran, November 13, 2017.

Residents huddle by a fire in an open area following a 7.3-magnitude earthquake at Sarpol-e Zahab in Iran's Kermanshah province.

People sit on the roof of a destroyed house after an earthquake, in the city of Darbandikhan, northern Iraq.

A flattened vehicle underneath building rubble is seen following a 7.3-magnitude earthquake at Sarpol-e Zahab in Iran's Kermanshah province.

Members of the Turkish Red Crescent, who reached the region as a first response, observe a collapsed building in Derbendihan district of Sulaymaniyah, Iraq.

Relatives weep over the body of an earthquake victim, in Sarpol-e-Zahab, western Iran.

A rescue worker searches debris for survivors with his sniffing dog after an earthquake at the city of Sarpol-e-Zahab in western Iran.

People gather around a levelled building in the mountainous town of Darbandikhan in Iraqi Kurdistan.

Aid agencies' staff and soldiers wait as a military cargo plane of Turkish Armed Forces is being loaded with medical and rescue equipments before heading to Sulaymaniyah of Iraq.

Members of the Turkish Red Crescent, who reached the region as a first response, dispatch aid goods and food to the survivors of the earthquake in Derbendihan district of Sulaymaniyah, Iraq.