By Nidal al-Mughrabi and Fadi Shana DOHA/GAZA (Reuters) -Israel pounded targets across the Gaza Strip on Saturday while its planes dropped leaflets on the southern area of Rafah urging Palestinians seeking refuge there to help locate hostages held by Hamas, residents said. Palestinian fighters battled tanks trying to push back into the eastern suburbs of the Jabalia area in northern Gaza, where Israel had started pulling out troops and shifting to smaller-scale operations, residents and militants said. The Israeli military said aircraft struck militant squads trying to plant explosives near tr…