MANILA, June 9 (Xinhua) -- The Russian Navy's anti-submarine ships Admiral Tributs and Admiral Vinogradov, and sea tanker Pechenga on Saturday docked in Manila for a six-day goodwill visit.

Capt. Lued Lincuna, spokesman for the Philippine Navy, said a Philippine navy vessel escorted the Russian ships at the vicinity of the Corregidor Island as a customary welcome procedure.

"A task force of the Pacific Fleet consisting of large anti-submarine ships Admiral Tributs and Admiral Vinogradov, and a mid-size sea tanker Pechenga arrived in Manila on an unofficial visit," Capt. Second Rank Nikolai Voskresensky, a spokesman for the Russian Navy, said.

During the June 9 to June 14 visit, Voskresensky said the task force commander, Capt. First Rank Oleg Korolev, will meet with officers of the Philippine Navy. Philippines' servicemen are also welcome to visit the ships, he added.