DUBAI (Reuters) – Iranian police used tear gas and fired shots in the air to disperse another night of protests over a deadly building collapse in the southwestern city of Abadan that officials are blaming on corruption and lax safety, Fars news agency and reports on social media said. Officials in the oil producing region of Khuzestan, where Abadan is located, said the death toll had risen to 29 people, and another 37 were injured in Monday’s collapse of the 10-storey residential and commercial building. So far 13 people have been arrested for building violations, they said. Authorities inves…