A bomb blast outside the Iranian ambassador's house in Libya's capital on Sunday which caused minor damage to the empty building was claimed by militants affiliated with ISIS, dpa reported. Iran's Foreign Ministry spokeswoman Marzieh Afkham condemned the "terrorist" attack, which she said claimed no lives. She called on political rivals in Libya to form a national unity government to end the country's escalating chaos. The Sunday attack only caused minor damage to the home of the Iranian ambassador, who is out of the country, according to a Libyan security official in Tripoli, who spoke on condition of anonymity because he wasn't authorized to brief reporters. The Sunday explosion was caused by an improvised explosive device placed among garbage bags outside the ambassador's house. The official said there were no casualties from the blast, which rocked the capital. -- SPA 21:30 LOCAL TIME 18:30 GMT تغريد