In this Thursday, Sept. 22, 2016 still image from video, aerospace engineer Felipe Bohorquez guides a test drone making a UPS delivery to Children's Island in Marblehead, Mass. UPS partnered with robot-maker CyPhy Works to fly the drone on a programmed route for three miles over the Atlantic Ocean to make the delivery. (AP Photo/Rodrique Ngowi)
In this Thursday, Sept. 22, 2016 still image from video, aerospace engineer Felipe Bohorquez guides a test drone making a UPS delivery to Children's Island in Marblehead, Mass. UPS partnered with robot-maker CyPhy Works to fly the drone on a programmed route for three miles over the Atlantic Ocean to make the delivery. (AP Photo/Rodrique Ngowi) Credit: Rodrique Ngowi

MARBLEHEAD — One of the world’s largest package delivery companies is stepping up efforts to integrate drones into its system.

UPS has partnered with robot-maker CyPhy Works to test the use of drones to make commercial deliveries to remote or difficult-to-access locations.

The companies began testing the drones on Thursday, when they launched one from the seaside town of Marblehead. The drone flew on a programmed route for 3 miles over the Atlantic Ocean to deliver an inhaler at Children’s Island.

The successful landing was greeted by jubilant shouts from CyPhy Works and UPS employees on the island to witness the test.

CyPhy Works founder Helen Greiner, who previously co-founded robot-maker iRobot, said the drone tests with UPS allow her company to gather engineering and cost information and then work with UPS to look at where drones can add the most value to UPS’ extensive network.

Still, the robot-maker doesn’t see drones replacing delivery trucks, bikes, buggies or gondolas anytime soon.

“Drones aren’t going to take the place of all delivery, but there are places where you have inaccessible location, an emergency situation where the infrastructure is down, you want or need the package quickly — these are the areas where drones will be the best way to get a package to a location,” Greiner said.