The Palestinian Authority's prime minister said he won't be able to pay the December salaries of 77,000 civil servants in Gaza unless Israel renews cash shipments. Israel stopped sending cash to Gaza in October, as part of a tight border closure of the Hamas-ruled territory. Salaam Fayad heads the West Bank government, a Hamas rival. Fayad continues to pay salaries of Gaza civil servants and members of the security forces who remained loyal to Palestinian Authority President Mahmoud Abbas after Hamas ousted Abbas's troops from Gaza in 2007. Fayad said the civil servants' December salaries were in doubt because of the cash shortage. The salaries were to be paid Wednesday. The salaries have been key to the survival of Gaza's hard-hit economy.