Gaza militants fired rockets and Israel carried out airstrikes early Friday as tensions soared following an Israeli raid in the occupied West Bank that killed nine Palestinians, including at least seven militants and a 61-year-old woman.

It was the deadliest single raid in the territory in over two decades. The flare-up in violence poses an early test for Israeli Prime Minister Benjamin Netanyahu’s far-right government and casts a shadow on U.S. Secretary of State Antony Blinken’s expected trip to the region next week.

Of the five rockets fired at Israel, three were intercepted, one fell in an open area and another fell short inside Gaza, the military said. It said the airstrikes targeted an underground rocket manufacturing site for Hamas as well as militant training areas.

The rockets set off air raid sirens in southern Israel but there were no reports of casualties on either side.

Both the Palestinian rockets and Israeli airstrikes seemed limited so as to prevent escalation into a full-blown war. Israel and Hamas have fought four wars and several smaller skirmishes since the militant group seized power in Gaza from rival Palestinian forces in 2007.