Gunmen killed 2 border troops in Russia's violence-plagued North Caucasus.
Three attackers opened fire from a car on a road near Nazran, the main city in the republic of Ingushetia, the regional Interior Ministry said. They escaped in their car after the attack, which left two Federal Border Service officers dead, it said.
Attacks on police and other law enforcement officers are common in Ingushetia. Violence is usually attributed to Ingush militants or rebels from neighboring Chechnya, the site of two devastating separatist wars since 1994.
In Chechnya late Tuesday, gunmen attacked a military convoy near the city of Argun, wounding one serviceman, the region's Interior Ministry said.
Violence in Ingushetia also results from tense relations caused by a territorial dispute between ethnic Ingush and North Ossetians in the neighboring republic.
Russian officials have repeatedly declared that Israeli aviation poses a threat to the Russian military in Syria.