But the fighting is exacting a heavy price. Fifteen corpses, all victims of the fighting, were buried in mass graves at Ramallah's hospital yesterday - one for 13 men, the other for two women. While earth was being heaved on to the graves, another woman of 56 was shot dead by Israeli snipers close to the hospital. There was also a heavy exchange of fire outside the Santa Maria Convent in Bethlehem run by the Salesians, a Roman Catholic order.