Russia has been accused of violating Polish airspace, after a missile exploded in a field in the east of the country, triggering Nato air defences, in the midst of a massive air raid that killed 13 people in neighbouring Ukraine.
Polish authorities said that the explosion near the village of Tarnawa-Kolonia, close to Lublin, had created a 10-metre-wide crater. Residents of Tarnawa-Kolonia reported hearing an explosion at about 4am that shook the windows of their homes, police said.
