Facilities at a Sinopec Shanghai Petrochemical Co. Ltd. plant were damaged after a fire burned through the complex starting around 4 a.m. Saturday. Photo: Bao Zhiming/Caixin

Firefighters prepare to put out the fire at the site. More than 550 firefighters responded to the blaze Saturday. Photo: Bao Zhiming/Caixin

Firefighters try to extinguish the fire with high-pressure hoses. Photo: Ding Gang/Caixin

The fire, which led to one injury and one death, was brought under control around 9 a.m. Saturday. Following that, controlled burning was carried out for the rest of the weekend. Photo: Ding Gang/Caixin

The fire occurred at an ethylene glycol plant at the complex. It caused explosions that damaged offices and production sites. Photo: Ding Gang/Caixin

Shattered glass lies on the ground of a production depot at the plant. Photo: Ding Gang/Caixin

Clothes hang in an office damaged by the explosion. Photo: Ding Gang/Caixin

Windows of a production depot lie shattered by the explosion. Photo: Ding Gang/Caixin

Smoke can be seen through a damaged production depot window. Photo: Ding Gang/Caixin

Windows of a building were blasted out. Photo: Bao Zhiming/Caixin

A building’s exterior shows damage from the incident. Photo: Ding Gang/Caixin

Black smoke hides the sky above the plant Saturday. Photo: Ding Gang/Caixin

Black smoke billows out of the plant. Photo: Ding Gang/Caixin

Smoke engulfs part of the plant. Photo: Ding Gang/Caixin

The plant and the nearby Sinopec Catalyst Shanghai Division were closed. The cause of the incident remains under investigation. Photo: Yin Liqin/China News Service, VCG