TEHRAN, Iran (AP) — Iran's top leader condemned the twin bombing attacks in Boston but at the same time charged that U.S. policies employ a double standard when it comes to its drone attacks that kill innocent civilians.

Ayatollah Ali Khamenei said Iran is opposed to the killing of innocent people, whether in Boston, Pakistan, Afghanistan, Iraq or Syria.

"The Islamic Republic of Iran, which follows the logic of Islam, is opposed to any bombings and killings of innocent people no matter it is in Boston, Pakistan, Afghanistan, Iraq or Syria and condemns it," he said.

Khamenei, who was addressing Iranian military commanders in Tehran, criticized the U.S. for killing people with drones in Pakistan and Afghanistan and backing forces that kill others in Iraq and Syria.

"What kind of logic is this that if children and women are killed by Americans in Afghanistan and Pakistan and by U.S.-backed terrorists in Iraq and Syria is not a problem but if a bombing happens in the U.S. or another Western country, the whole world should pay the cost?" he asked. His comments were posted

"The U.S. and others claiming to support human rights remain silent towards the massacre of innocent people in Pakistan, Afghanistan, Iraq and Syria but create global controversy when explosions occur in the U.S.," he said.

Iran is the chief regional ally of Syrian President Bashar Assad and is considered close to Iraq's Shiite Muslim-dominated government.

Khamenei charged that Western civilization was collapsing because of such double standards.

"Western civilization is on the verge of collapse and downfall because of contradictions, lack of logic, coercions and lack of care for human principles," he said.