Phase thats according to the un. The humanitarian relief co ordinator told the bbc that militants were directly targeting families who remain trapped. Iraqi forces supported by kurds, Shia Militias and us forces are pushing into western mosul, which is still largely held by the last remaining militants. Eastern mosul is back in the hands of the government. Alan johnston reports. In the ruins of the streets, the battle grinds on. One more shot fired and in the heat and the attack continues on the fringes of mosul old city. In the distance, the mosque held by the militants and they may well fight to the death to try to keep it. As the army Presses Forward , try to keep it. As the army Presses Forward, fears grow for the thousands of civilians trapped in the old city. They are in danger of being hit accidentally by the attacking Government Forces and the un said the militants are using civilians as human shields, targeting those who try to escape. Some families to gather their children an