A funeral was held on Saturday for one of the two victims of a rocket that struck a Polish village near Ukraine earlier this week, an incident widely believed to be an accident.

Warsaw and NATO have said the blast was likely caused by a Ukrainian anti-aircraft missile launched to intercept a Russian barrage, but that Moscow was ultimately responsible for starting the conflict.

Two workers at a local grain drying plant were killed in Tuesday’s explosion in Przevodov, a village about six kilometers from the Ukrainian border.

Boguslaw Wos, 62, was buried in the local cemetery at a funeral attended by family and friends, villagers, as well as soldiers and Polish and Ukrainian officials.

“Without this cruel war, this man would not have become a victim,” said Governor Lech Sprawka at the funeral.

“This sacrifice serves as a call for peace for the whole world,” he added, quoted by Polish news agency PAP.

The victim’s son also spoke, highlighting his late father’s kindness and recalling how he had helped refugees who poured into Poland after Russia invaded Ukraine.

The rocket explosion in NATO member Poland initially raised fears of a dangerous escalation in the conflict between Ukraine and Russia.

An investigation into the explosion is underway.

The funeral for the other man killed – 60-year-old Bogdan Ciupek – will take place on Sunday.