Afghanistan, Dec. 24 -- Three people, including police officers, were killed in an explosion in Russia's capital Moscow, authorities said, as investigators launched a probe into the deadly incident.

Three people, including two police officers, were killed in a car bomb explosion in Moscow on Wednesday, Russian authorities said.

According to Russian officials, the explosion occurred after police officers noticed a suspicious individual inside a vehicle and approached it during a security check.

Investigators said an explosive device planted inside the car detonated at the scene, killing the officers and the suspect. Emergency services quickly cordoned off the area.

The incident came amid heightened security concerns in the Russian capita...