LAHORE: Anti Terrorism Court (ATC) Lahore has extended interim bail of sisters of PTI founder, Umar Ayoub and others in May 9 arson and siege cases.Interim bails have been extended upto July 24.The court ordered all the accused in Askari Tower case to join the investigation.The accused including Fawad Chaudhry, Asad Umar, Musarrat Cheema and others appeared in the court and signed their rolls.