Amazon confirmed that it voluntarily paused its Prime Air drone deliveries in Texas and Arizona, but downplayed the role of a reported crash of two drones in December at an Oregon testing facility as a factor in the decision.

Amazon has paused testing of its delivery drones following a crash involving two of those drones, according to Bloomberg.

The company said Friday it was immediately suspending drone deliveries in Texas and Arizona to fix the aircraft’s software.

Amazon has temporarily suspended its commercial drone delivery operations in Texas and Arizona after two of its latest MK30 models crashed in rainy weather at a testing facility. The company announced on Friday that it was pausing the program to implement software updates to ensure the safety of its fleet.