Metro

See photos from the eight-alarm blaze in Waltham

Scot Eisen for the Boston Globe
Firefighters were at the scene of an eight-alarm blaze in Waltham early Sunday morning.
Scott Eisen for The Boston Globe
The blaze struck an apartment complex that was under construction in Waltham before dawn Sunday morning.
Firefighters watch as a building burns at the scene of an 8 alarm fire in Waltham on Sunday, July 23, 2017 that involved multiple structures. (Scott Eisen for The Boston Globe)
Scott Eisen for The Boston Globe
Firefighters from across the Boston area responded.
Firefighters put water on a fully involved building at the scene of an 8 alarm fire in Waltham on Sunday, July 23, 2017 that involved multiple structures. (Scott Eisen for The Boston Globe)
Scott Eisen for The Boston Globe
No injuries were reported, although five buildings collapsed.
Firefighters put water on a fully involved building at the scene of an 8 alarm fire in Waltham on Sunday, July 23, 2017 that involved multiple structures. (Scott Eisen for The Boston Globe)
Scott Eisen for The Boston Globe
The fire’s cause wasn’t immediately known.
Burning rubble from part of an 8 alarm fire in Waltham on Sunday, July 23, 2017 that involved multiple structures. (Scott Eisen for The Boston Globe)
Scott Eisen for The Boston Globe
The fire struck an apartment complex that was under construction.
A part of a building collapses at the scene of an 8 alarm fire in Waltham on Sunday, July 23, 2017 that involved multiple structures. (Scott Eisen for The Boston Globe)
Scott Eisen for The Boston Globe
Buildings collapsed during the blaze.