Burnt out Volkswagen cars are pictured among the damage, Aug. 14, 2015, on the second morning after a series of explosions at a chemical warehouse hit the city of Tianjin, in northern China.

A local man prays for victims killed in the explosions at Chaoyin Temple, Aug.14, 2015, in Tianjin, China.

Residents donate blood at Tianjin Blood Center for those injured after a massive explosion happened on late Wednesday, August 14, 2015, in Tianjin, China.

A girl wears a gas mask in a temporary shelter after the explosions, Aug.14, 2015, in Tianjin.

Volunteers stick posters sent from residents looking for their relatives that may be hurt at a primary school which is used as an emergency shelter, Aug. 14, 2015, in Tianjin, China.

A damaged room is seen in an apartment near the site of the explosions, Aug. 14, 2015, in Tianjin.

A resident wears a mask as he rides his scouter on a street, Aug.14, 2015, in Tianjin.

Windows that were blown out by explosions at the nearby port are seen scattered on the ground of an apartment building, Aug. 14, 2015, in northeastern China's Tianjin municipality.

Students at Hailiang International School lighting at a vigil to pray for the victims of the explosions at a chemical warehouse, Aug.13, 2015, in Tianjin in Zhuji, in eastern China's Zhejiang province.

A man walking out of his apartment block with some belongings, Aug.13, 2015, after a series of explosions at a chemical warehouse hit the city of Tianjin, in northern China.

Burnt vehicles are seen in Tianjin's warehouse explosion, Aug. 13, 2015,in Tianjin, China.

A man looks at a row of damaged cars outside a residential building near the site of a series of explosions, Aug. 13, 2015, in Tianjin, northern China.

A man covers his mouth with a towel near to the site of a massive explosion at a warehouse in the Binhai New Area, Aug. 13, 2015, in Tianjin, China.

A dormitory destroyed by the shockwave of a nearby explosion, Aug. 13, 2015, is seen in the northeastern China's Tianjin municipality.

An injured firefighter grimaces as he is examined in a hospital following explosions, Aug. 13, 2015, in northeastern China's Tianjin municipality.

Firemen work among several destroyed buildings and containers, Aug.13, 2015, after a huge explosion rocked the port city of Tianjin, China.

Rows of burnt out Volkswagen cars are seen near the site of a series of explosions, Aug.13, 2015, in Tianjin, northern China.

A dangerous cargo storage exploded, Aug.13, 2015, in Tianjin, China.

A residential building nearby the explosions are damaged, Aug. 13, 2015, in Tianjin, China.

Smoke is seen after explosions of a warehouse, Aug.13, 2015, in Tianjin, China.

Staff of a maternity hospital wait to provide help to injured people being housed at a school near the site of an explosion, Aug.13, 2015, in Tianjin, in northern China.

Pieces of glass and debris are seen on the road nearby the spot of Wednesday explosions, Aug. 13, 2015, in Tianjin, China.

Rescuers are seen at the site of the massive explosions, Aug.13, 2015, in Tianjin.

Fire and smoke rises at the site of the massive explosions, Aug. 13, 2015, in Tianjin.

Victims of the massive explosions sit in a tent in a temporary shelter at an elementary school, Aug. 13, 2015, in Tianjin.

A damaged car is covered with shattered wall tiles and window parts at the site of the massive explosions, Aug. 13, 2015, in Tianjin.

A dangerous cargo storage exploded, Aug. 12, 2015, in Tianjin, China.

Fire and smoke are seen after explosions of a warehouse in Binhai New Area, Aug. 12, 2015, in Tianjin, China.

Smoke and fire are seen after an explosion in the Binhai New Area, Aug. 13, 2015, in north China's Tianjin Municipality.

In this combination of images taken from video of the warehouse exploding, Aug. 12, 2015, in Tianjin, China, filmed from a nearby residential building.