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.

WARSAW, Poland (AP) — An unidentified flying object crashed into a cornfield and exploded in eastern Poland early Wednesday, the country’s news agency PAP reported.

Poland on Wednesday accused Russia of provoking it after a Russian drone crashed in the eastern part of the country. Polish Defense Minister Władysław Kosiniak-Kamysz lamented the crash, which happened around 2 a.