Twelve people suspected of being involved in the massive explosions at a chemical storage warehouse in Tianjin, China, have been arrested.
According to local media, they included the chairman, vice-chairman and three deputy general managers of the logistics company which had been storing the volatile chemicals.
The blasts killed 139 people and injured hundreds more, leaving the port area of the city in ruins.
A video showing a massive explosion in the northern China city of Tianjin, 90 miles from Beijing, was uploaded to social media today.
State-run news agency Xinhua News said the explosion was caused by flammable cargo at a container terminal and that at least 300 people are injured.
Social media users also posted photographs of the blast on instagram.
Thousands of dead fish have washed up near the site of two explosions which killed at least 114 people in China.
China's authorities face increasing pressure for answers and assistance from citizens left homeless after the devastating factory explosion.