At least 15 people have been killed after a bomber blew himself up in the midst of mourners in Tikrit, the hometown of former president Saddam Hussein. At least 30 others were wounded in the attack, police said. The bomber arrived at a hall located in the centre of Tikrit where people were gathered to mourn the death of the father of provincial council member Saab Abd Badaywi. He parked an explosive-laden car outside the building and then entered the hall where he blew himself up, a police officer said. The toll was expected to rise as many victims were caught in the debris after the roof of the hall caved in following the explosion. The rescue effort was hampered because the bomber's car was outside the building.