A Polish general said early evidence points to the drone having a Chinese engine, and that it was likely "flying very low" to avoid radar.

Poland's Armed Forces Operational Command said on social media on Wednesday that no violations of Polish airspace from neighbouring Ukraine or Belarus were recorded overnight. Officials initially said the explosion may have been caused by a part of an old engine with a propeller.

A drone which crashed into a field in eastern Poland most likely came from the direction of Belarus, a regional prosecutor said on Thursday, following the incident described as a provocation by the defence minister.

Police received the call shortly after 2:00 a.m. At the scene, officers found charred debris of various sizes — metal and plastic — scattered over dozens of meters. They said the origin of the fragments has not yet been established and that the area is still being examined.