Metrodome roof in Minneapolis collapses under snow
The inflatable roof of the Metrodome sports stadium in US city of Minneapolis has collapsed under heavy snow.
Seventeen inches (43 cm) of snow fell on the city in 24 hours in a storm which began on Friday night.
No-one was hurt but the collapse of the stadium's teflon roof forced the cancellation of a US National Football League match which was scheduled to take place in the venue.