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.
The death toll from two massive explosions that tore through an industrial area in the port city of Tianjin in northeastern China has risen to 104, according to Chinese state media.
The number of people killed had previously been put at 85.
An unspecified number of people have been evacuated from near the location of Wednesday's blasts after a fire broke out again at the site.
Many took refuge in a school near the site, state media said, but the have been moved again after a change in wind direction on Saturday prompted fears toxic chemical particles could be blown inland.
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.