A top Iranian military commander said Saturday that nothing but burning the White House and hanging US commanders could remedy the pain caused to Muslims by the burning of Korans at a US military base in Afghanistan, pan-Arab Al Arabiya news channel reported Sunday."The US has committed such an ugly act and burned Korans because of the heavy slap it has been given by Islam," Basij (volunteer forces) Commander Brig.-Gen. Muhammad Reza Naqdi told Iran's semi- official Fars new agency, according to the Al Arabiya report.“Their apology can be accepted only by hanging their commanders; hanging their commanders means an apology,” he was quoted as saying.US President Barack Obama sent a letter to Afghan President Hamid Karzai on Thursday apologizing for the incident, which occurred last week, and saying that it wasn't intentional. In a continuation of events, two American officers were killed as rage gripped the country for a fifth straight day over the burning of the Muslim holy book, despite Obama's apology.Afghanistan's interior ministry said on Sunday it suspects one of its employees may have killed the two US officers inside the ministry a day earlier."An employee has been identified as a suspect and he has now fled. The interior ministry is trying to arrest the suspected individual," read a statement e-mailed to the media.