FREETOWN, Nov 13 (Reuters) - The death toll from a fuel tanker explosion in Sierra Leone"s capital on Nov. 5 has risen to 144 from a previous estimate of 115, health ministry data showed on Saturday. The tanker exploded following a collision in a suburb of Freetown. Victims included people who had flocked to collect fuel leaking from the ruptured vehicle. read more Fifty-seven people are still being treated in hospital of whom 11 remain in a critical condition, the ministry said.