Dozens of people were evacuated from their homes after a gas main fire in what police described as a "critical incident".
The incident happened at 1.40am in Coney Green Drive, a residential street in Longbridge, Birmingham.
Firefighters called to the scene found a man slumped unconscious in a gas main trench, and rescued him while the fire blazed nearby.
He was taken to hospital and held on suspicion of starting the fire, West Midlands Police said. No-one else was injured.
More on this on the National site.
More top news
Mainly dry with clear spells but possibly one or two light showers near coasts overnight, remaining largely dry on Sunday.
After a cool start, Sunday looks set to be a dry and bright day, with sunny spells.
A mother from Birmingham has issued a warning after her daughter, 4, was bitten by a spider.