Emergency contraception. you re live with bbc news. now, wildfires are continue to cause serious problems in parts of north america and europe. canada has begun evacuating the residents of an entire city in the north west of the country, because huge fires are now approaching. more than 20,000 people in yellowknife the capital city of canada s northwest territories have been told to leave by friday. the authorities said the wildfires had taken a turn for the worse and posed a real threat . yellowknife is now blanketed in smoke. and fires are burning close to the one major road into and out of the city. more now on the wildfires on the hawaian island maui, where111 people are now confirmed dead. questions are being asked about what caused the disaster and whether more could have been done to save lives. people across the island have reported seeing fires being triggered when power lines were brought down by strong winds. from maui, john sudworth