Gunmen clashed with members of the Hamas-led police force in a Gaza City hospital on Tuesday, wounding at least five people, medics and witnesses said. It was the latest round of internal fighting in the Palestinian-ruled coastal territory since Hamas rose to power in March after an upset election victory. In the last two days two members of the rival Fatah movement have been shot and wounded by unknown assailants in Gaza. Earlier on Tuesday, a gunman shot and wounded a Hamas member earlier in the southern Gaza town of Khan Younis, medics and witnesses said.