GAZA CITY - The Palestinian group Hamas Friday vowed that it would "not stay silent" after one of its followers was killed during an Israeli army raid in the West Bank town of Nablus, AFP reported.

"This is flagrant violation of the truce by the Zionist enemy," Ismail Abu Shanab, a senior Hamas political leader in Gaza, told AFP. "Hamas will discuss this aggression but we cannot be silent about this violation and aggression."

Hamas was one of a series of Palestinian groups which announced on June 29 that it was suspending its campaign of attacks against Israel for three months.

But it attached a raft of conditions to the truce, including "an immediate halt to all types of Zionist aggressions".

Violence has drastically diminished in the past few weeks but Israel says the truce is unilateral and it is not bound by its terms.