Philippines says Islamists keep up week-long fight with prisoners, looted guns

By Tom AllardMARAWI, Philippines (Reuters) - A week-long assault by Islamist rebels in a southern Philippine city is being fuelled with stolen weapons and ammunition and fighters broken out of jails, the military said on Wednesday, as troops battled militants resisting ground and air attacks.The pro-Islamic State Maute group has proven to be a fierce enemy, clinging on to the heart of Marawi City through days of air strikes on what the military called known rebel targets, defying expectations of