Chief executive Guy Platten said the head of the Rail Maritime and Transport (RMT) was “a passionate supporter and defender of UK seafarers, and working people from across maritime services.

“He was outspoken and passionate in public, but also considered and articulate behind closed doors.” 

The RMT announced his death on Tuesday, with UK media reporting a heart attack was suspected.

Platten added: “At his core, he was a man who cared. He