2 December 2014
Last updated at 18:32
Dozens of municipal buildings, including fire departments and schools, in the US city of Detroit have lost power on Tuesday.
About 100 structures, controlled by the city’s public lighting department, have gone dark with no estimate on when power will be restored.
Among the buildings affected are the Joe Louis sports arena and the Frank Murphy Hall of Justice courthouse.
A cause for the power outage has yet to be determined.
About 100 buildings on the city’s power grid are said to be without power, Scott Simons, a spokesman for DTE Energy, told the BBC.
All of the structures, mostly government buildings, were on a separate power grid, he said.
A murder trial was said to have been paused on Tuesday morning when the lights flickered and went out, the Detroit Free Press reported.
People were seen evacuating the courthouse by stairwells, while Detroit fires stations was reportedly using backup generator power.
More than 1,200 inmates at a local municipal centre were placed on lockdown, and a hospital began transferring trauma patients to other facilities.
And Wayne State University said on its website that multiple buildings on campus were affected but classes were running as normal.