By Ben Tavener, Senior Contributing Reporter
RIO DE JANEIRO, BRAZIL – A number of people have been injured after two high-rise buildings - one twenty floors high - collapsed following an explosion, allegedly caused by a gas leak, late last night in the downtown area of Rio de Janeiro. A smaller building - under construction - also collapsed.
Emergency teams scrambling through the debris have already picked survivors from the remains of the buildings, while others are thought to remain trapped inside.
Confusion remains over whether any fatalities occurred in the incident, and a list of those possibly missing has been drawn up to . . .