The Philippines has deployed coastguard, military and civilian vessels in a race to find survivors on a smouldering passenger-and-cargo ferry off the western island of Palawan, after ‌a fire on board killed at least five people and left more than 80 missing.Drone footage released by the coastguard showed the blackened ferry surrounded by clear blue-green waters, with the vessel still generating smoke hours after the fire broke out on Wednesday night.Coastguard spokeswoman Commodore Noemie Cayabyab said thick smoke continued to billow from the vessel, while extreme heat and the risk of explosions prevented rescuers from boarding.So far 43 people, including two Chilean nationals, have been rescued from the ferry, ⁠which was on a voyage from Baseco in Manila to Coron, a popular tourist destination in Palawan known for its diving sites and ‌island-hopping attractions.People stand aboard the fire-hit ferry. Photo: Philippine coastguard via ReutersCayabyab said the coastguard had deployed two 44-metre vessels and three smaller craft, while army rescue boats, local fishermen and private resort owners had joined the search since Wednesday night. One military aircraft ‌was also on standby, she said.At least one survivor reported hearing a loud explosion from the cargo hold before the ⁠blaze spread rapidly through ⁠the ferry, Cayabyab told a press conference. The survivor described it as a powerful blast, but authorities had yet to determine what caused it, she said.