The Russian postal service’s first drone delivery ended abruptly after its 7-kilogram quadcopter smashed into a wall shortly after takeoff in Siberia.

The republic of Buryatia’s capital of Ulan-Ude was chosen as a testing ground for the Russian Post’s mail deliveries to remote regions by drone.

In the trial, the Russian-made drone was due to carry a 2-kilogram package to a nearby village, but smashed into the wall of a nearby house shortly after take off, Baikal-media.ru reported Monday.