At least 10 people were killed when a fire broke out in Sindh province’s Thatta city on Sunday.The dead included three women, four children and three men, The Nation reported.According to the police, the fire engulfed several makeshift houses. Several other persons sustained serious burn injuries, and were shifted to hospital.The cause of the fire was yet to be ascertained, the police said.“We are investigating the incident and will share facts as soon we get them,” said a senior police official.