Doorbell camera video captured a massive explosion in Hayward, California that left at least six people injured and reduced three properties to rubble. It is reported that the explosion was caused by a damaged underground gas line. Alameda County Fire Department officials said two of the three properties were residential and one appeared to be used as a workshop. #california #explosion #alameda | RTÉ News

Six people were transported to area hospitals after a gas explosions Thursday in Hayward, California, according to fire officials. Their conditions were not immediately clear. 🎥: @cnn | Complex