The US is flying surveillance drones farther south above the Black Sea after a Russian jet collided with a US drone last week, according to two US officials, CNN reported.

The drone flights have remained in international airspace, but since the collision between one of the Russian jets and the MQ-9 Reaper drone last Tuesday, the US has moved its drone flights farther away from airspace surrounding the Crimean peninsula and eastern portions of the Black Sea.

One of the officials said the routes are part of an effort “to avoid being too provocative,” as the Biden administration remains careful to avoid an incident that could potentially escalate into a direct conflict between US and Russian forces.

The official said the drone flights would continue this way “for the time being,” but added there is already “an appetite” to return to the routes closer to Russian-held territory.