Ten people were injured in an attack on a police station in central Cairo after a bus driver was killed, Egypt\'s health ministry said on Saturday. \"Most of the injuries were superficial,\" following the attack on Friday during which police fired tear gas at stone-throwing protesters and one of their vehicles was set ablaze, ministry official Abdelhamid Abaza said in a statement. State television said calm was restored on Saturday morning, with police armoured cars posted around the Ezbekiya station. The bus driver was beaten up by onlookers on Thursday during a row with a policeman and died in hospital of his injuries the next day, after which his family gathered up protesters to march on the station.