17 dead, including 3 firefighters, after supermarket roof collapse in Latvia

Rescuers work at the Maxima grocery store after its roof collapsed in Riga, Latvia, Thursday, Nov. 21, 2013. Latvian rescue officials say a roof at a large grocery store in the country's capital collapsed and killed several people and injuring more than a dozen people. (AP Photo/Roman Koksarov) (The Associated Press)

RIGA, Latvia – Latvia's rescue service says 17 people have died, including three firefighters, after large sections of roof collapsed at a supermarket in the country's capital.

The Fire and Rescue Service wrote early Friday on its Twitter account that 36 people were also injured, and approximately the same number has been rescued from the rubble.

The cause of the collapse Thursday is still not known but appears to have been caused by workers building a winter garden on the supermarket's roof.