Determined Grangemouth refinery workers staged a vigil outside the shut down plant last night to remind owners Ineos they are standing firm against attacks on jobs, their union and a "vital national asset."

Members of the Unite union began to assemble as light faded yesterday evening and will keep it up until Monday, with a protest planned outside the huge plant on Sunday afternoon.

Unite convener Stephen Deans told the Morning Star: "This has turned from an opportunistic attack on me to an attack on our pay, pensions and jobs and an attempt to break the Unite union here at Grangemouth.