PowerPoint Show by Andrew

Chinese authorities have ordered the evacuation of residents living within a two-mile radius of the Tianjin blast as it was revealed for the first time that deadly SODIUM CYANIDE was present at the site.

These included those who had taken refuge in a school near the site of the explosions after a change in wind direction prompted fears that toxic chemical particles could be blown inland.

Police confirmed the presence of the chemical, which is fatal when ingested or inhaled, was 'roughly east of the blast site' in an industrial zone in the northeastern port city of Tianjin - amid contamination fears from blasts and fires that continue to rage.

Soldiers of the National Nuclear Biochemical Emergency rescue team take debris samples near the core area of the explosion site in Tianjin.

An aerial view shows a massive hole at the core area of explosion site after Wednesday's warehouse fire that left 85 people dead.

A school near the site of the explosions where people had taken refuge was evacuated after a change in wind direction prompted fears that toxic chemical particles could be blown inland.

Chinese firefighters rest as they wait to be deployed near the site of an explosion in northeastern China's Tianjin municipality.

70 specialized anti-chemical soldiers entered the core area of the blasts site this morning to monitor chemical contamination.

Chinese police confirmed for the first time today that hat deadly sodium cyanide was present at the site of the Tianjan blasts.

With the death toll expected to rise, soldiers donned gas masks as they prepared to search for those missing.

A 50-year-old man was rescued 50 metres away from the blast zone today and was in a stable condition after surviving three days in a shipping container.

An excavator works amid masses of destroyed containers at the explosion site in the aftermath of the huge explosion.

Smoke rises as damaged vehicles are seen burning near the site of Wednesday's explosions.

Firefighters wearing gas masks search the blast site today.

Damaged cars exploded and triggered new blasts after the fire in Tianjin Warehouse fire left 721 others people in hospital.

Authorities are warning the death tolls, which includes at least 21 firefighters, looks set to rise further following the disaster.

A man eats in a tent set up at a temporary shelter for people affected the explosions.

The mother of missing firefighter Xue Ning is comforted by family members as she cries outside a news conference after trying to demand more information from government officials.

Citizens wearing face masks walk the streets. Asked about air quality, construction worker Li Shulan said: 'I do feel a bit afraid'.

Family members of firefighters missing in the explosions stormed a government news conference today, demanding information. Pictured: Wang Baoxia talked to a journalist about her missing brother Wang Quan.

Firemen wearing gas masks prepare to combat fresh fires in the area of a huge explosion that rocked the port city of Tianjin.

Fireman Zhou Ti, 19, was freed by rescuers around dawn on Friday morning after he was trapped for two days from the explosion.

Medics at Tianjin Medical University General Hospital clean the wounds of the 19-year-old firefighter injured in the blasts.

Grim scenes show burnt-out vehicles and a building which was completely gutted in the blasts on Wednesday.

Smoking debris can still be seen at the explosion site as police ordered residents to evacuate buildings within a two-mile radius.

Residents carrying their essential items were evacuated from the danger zone around the site of the massive explosion.

Around 6,300 people have been displaced by the blasts with around 721 injured and 33 in serious condition.

Shockwaves from the explosions were felt by residents in apartment blocks miles away in the city of 15 million people.

Firemen wear gas masks as they combat fresh fires in the area of a huge explosion at the chemical warehouse in Tianjin.

Industrial accidents are not uncommon in China. Last year, a blast at an auto parts factory killed 75 people.

Several vehicles are seen burning following blasts in Tianjin municipality late Wednesday evening, which killed at least 85 people.