(Adds detail from security source)
BEIRUT, Aug 23 (Reuters) - A Palestinian militant group in Lebanon said one of its bases south of Beirut was hit by an Israeli rocket on Friday, but said it caused no injuries or significant damage, Lebanon's Al-Manar Television reported.
The station quoted a spokesman for the Popular Front for the Liberation of Palestine-General Command as saying the group's base in Na'ameh was attacked. The spokesman said the PFLP-GC was surprised it was targeted because the earlier rocket fire was claimed by a separate al Qaeda-linked Sunni Muslim group.
A Lebanese security source confirmed that a rocket hit an area near Na'ameh, south of the Lebanese capital Beirut, near a network of tunnels used by the PFLP-GC in hills overlooking the Mediterranean coast.
He said the rocket caused a 5-metre (16-foot) crater, but no casualties.
Earlier, an Israeli spokesman said the Israeli air force bombed a militant target in Lebanon in retaliation for a cross-border rocket salvo on Thursday. (Reporting by Laila Bassam; Writing by Dominic Evans; Editing by Xavier Briand)