AlQa'dah 18, 1432, Oct 16, 2011, SPA -- Five deaths and seven injuries were reported Sunday after a three-storey apartment building collapsed in the Latvian capital of Riga, dpa cited the internet portal Delfi as saying. The injured included two girls ranging in age from 4 to 10, reported Delfi, quoting local responders. There had been 37 residents of the building at the time of the collapse. Investigators think gas might have leaked and caused the explosion.