The first U.S. airline flights to hurricane-battered Puerto Rico have arrived, and more flights are expected over the weekend.

Two American Airlines planes from Miami arrived at San Juan’s Luis Munoz Marin International Airport on Friday morning.

Two JetBlue Airways planes with relief supplies — one of them also carrying New York Gov. Andrew Cuomo — were en route to the island, a JetBlue spokesman says.

Delta Air Lines and Southwest Airlines plan limited service to San Juan on Saturday. United says it is still assessing the situation.

All power to the island was knocked out by Hurricane Maria.