“Ukraine refused me entry. I am horrified and angry,” Pellmann said in a post on X (formerly Twitter) on Tuesday evening, after he was deported. “The reasons for this are anyone’s guess, but it is probably my commitment to an immediate ceasefire, a peaceful solution and a halt to arms exports.

“I wanted to see the situation in the country for myself. This has now been prevented."

“Apparently there is a list of public figures who have taken a critical stance and are no longer allowed to enter Ukraine,”

The German embassy in Kiev had tried to intercede on his behalf, but apparently to no effect.