The Philippine Space Agency (PhilSA) on Thursday confirmed the launch of China’s Long March 8A rocket from the Hainan International Commercial Launch Center in Wenchang, Hainan.

PhilSA projected that debris from the launch fell at approximately 9:33 a.m. in identified drop zones. These areas were located in the West Philippine Sea, roughly 118 nautical miles from El Nido, Palawan, and 137 nautical miles from Puerto Princesa.

Drop zones were also located near the Tubbataha Reef Natural Park and Hadji Muhtamad, Basilan.

Authorities were informed of the launch through a pre-launch report and a Notice to Airmen warning of “aerospace flight activity.”

PhilSA explained that unburned rocket debris, such as boosters and fairings, are typically discarded as the rocket enters outer space. While the debris was not expected to fall on land or inhabited areas, the agency warned it still poses risks to ships, aircraft, and fishing vessels passing through the drop zones.

“There is also a possibility for the debris to float around the area and wash toward nearby coasts,” PhilSA said in a statement. The agency also noted that the uncontrolled reentry of the rocket’s upper stages from outer space could not yet be ruled out.