CNN) -- Ten troops -- including seven Americans -- were killed in Afghanistan on Monday, making it one of the deadliest days for coalition forces since they entered the country in 2001, officials said.

Also Monday, an American citizen and another person died in an attack on a police training center in Kandahar, the U.S. Embassy in Kabul said.

The 10 slain troops included three NATO-led service members killed in southern Afghanistan. Two of them died after a roadside bombing attack and another was killed in small arms fire, NATO's International Security Assistance Force said.

In eastern Afghanistan on Monday, an improvised explosive device killed five NATO troops, according to an ISAF news release.

In a separate operation, a service member was killed by small arms fire in eastern Afghanistan, and another was killed by a roadside bomb in southern Afghanistan.

An ISAF spokesman said seven of the 10 slain NATO troops were Americans.

In the attack on the police training center in Kandahar, one suicide attacker driving a Toyota Corolla struck the center's tower and two suicide attackers who attempted to enter the center detonated themselves at the facility's gate, the Afghan Interior Ministry said. All three attackers were killed.

"Our sympathies go out to those who lost loved ones in this callous attack. The United States will continue to stand with our Afghan partners to fight terrorism and help the Afghan government provide security, safety and prosperity to its people," the U.S. Embassy in Kabul said.

Source

Alhamdulillah