In Brazil, the death toll from the collapse of two apartment buildings in Rio de Janeiro has risen to 10.<br />''<br />''Government officials said, rescuers are working with the help of sniffer dogs in the hope of finding more survivors.<br />''<br />''<br />''The buildings collapsed on Friday, three days after torrential rain wreaked havoc in the city.<br />''<br />''<span style="color: #222222;">Authorities have pledged to demolish some of the surrounding buildings in Muzema to prevent further collapses.</span><br />