MOSCOW, July 26 (RIA Novosti) - Police have found a large cache of weapons in the capital of Russia's troubled North Caucasus republic of Chechnya, a local police source said on Sunday.

The arms cache was discovered on Saturday in the basement of a former footwear factory in the Oktyabrsky district of Grozny, the police source said.

The cache contained a grenade launcher, a Kalashnikov assault rifle, a machine gun, a large amount of ammunition and also over 900 grams of TNT, the police source said.

Militant attacks and clashes remain common in Russia's North Caucasus although the Kremlin campaign to fight separatists and terrorists in Chechnya has officially ended. Violence often spills over into nearby republics, in particular Ingushetia and Dagestan.