(Adds details) GAZA, Nov 4 (Reuters) - An Israeli air strike targeted a minivan being driven by suspected Hamas militants in Gaza on Saturday, killing one person and wounding two others, Palestinian security sources and doctors said. The Israeli military said it was checking the report. The van was travelling on a busy central street in Gaza City when it was struck, the security sources said. The attack comes amid an intensification of fighting between Israeli forces and Palestinian militants in Gaza, with at least 17 Palestinians, around half of them civilians, killed by Israeli troops on Friday.