About seven hours later emergency services gave the green light for residents to go home, with the warning "smoke is likely to continue for the next few hours".

BBC: Fire on Rotherwas Industrial Estate

The pilots saw a warning on their computer screen telling them there was smoke inside one of the electrical compartments, the airline said.

BBC: Top Japan airlines ground Boeing 787s after emergency

Temperatures reached a record 39C (102F) in the capital on Thursday, with health experts warning of pollution levels 10 times higher than normal safety limits due to the thick pall of smoke from nearby wildfires.

BBC: Russia mobilises 240,000 to fight deadly wildfires