A report updated one hour ago reports a huge evacuation which suggests that the risks of either a secondary explosion or from toxic smoke is a real possibility.

Residents in Samut Prakan province who live within a five-kilometre (3.1-mile) radius of the factory, owned by a Taiwanese company, were being evacuated amid concerns over poisonous fumes from burning chemicals and the possibility of additional detonations.

Al Jazeera’s Tony Cheng, reporting from Hong Kong, said that firefighters are concerned about potential new explosions due to the presence of 20,000 litres of highly flammable chemicals and are struggling to bring the blaze under control.
https://www.aljazeera.com/news/2021/...ation-underway