Iran President Hassan Rouhani has vowed to find the culprits responsible for buildings collapsing in a 7.3-magnitude earthquake on Sunday. BBC reports that government-built buildings had collapsed while privately-built ones were standing.<br/><br/>President Rouhani visited the region yesterday a national day of mourning – and made an address that was broadcast live on TV. He said the government would lend and give money to those left homeless, and hold accountable anyone found not to have upheld building standards. He said the people should build their own houses. They build better houses than those built under projects and schemes.<br/><br/>The government is scrambling to get aid to Kermanshah province in the west of the country, where hundreds of homes were destroyed and people have spent two nights outdoors in the cold.