ROSTOV-ON-DON, April 28 (RIA Novosti) - Three people were killed and one injured on Tuesday in Russia's North Caucasus Republic of Ingushetia in a shootout between presidential security officers and police, a presidential spokesman said.

"At approximately 19:10 Moscow time [15:10 GMT] officers at a police post in Nazran mistakenly fired shots from assault weapons at a car carrying guards from President [Yunus-Bek] Yevkurov's personal security unit. A shootout occurred," Kaloy Akhilgov said.

The vehicle was not traveling as part of a presidential motorcade.

Two Interior Ministry officers and one presidential guard were killed in the shootout. One presidential security officer was hospitalized.