received their boosterjab. this includes third doses for those, with certain health conditions. at least 99 people have died in an oil tanker explosion in sierra leone. the blast happened after the lorry collided with another vehicle in the capital, freetown. at least 100 people have been injured. kathyrn stancyszyn reports. the blast happened in eastern freetown after a truck collided with a petrol tanker. people rushed to collect the leaking fuel, causing a heavy trafficjam, according to eyewitness accounts. there was a vast explosion. fireballs spreading through the crowds. vehicles in the traffic jam were satellite. hospitals in freetown are overwhelmed with injured people. many in a critical condition.