Nine security staff at Belfast International Airport were sacked tonight after taking part in strike action over pay and conditions.
The company which provides security at the airport - ICT Security - said the latest strike action had been illegal.
Union representative Mr Gordon MacNeill, one of those sacked, said he was disgusted and would be lodging an appeal.
"I have been victimised and singled out," he claimed. He said he also wanted to know why, out of 42 workers who had been involved in industrial action, 22 had been suspended and then nine sacked.
Strike action was started several weeks ago in a dispute over pay, overtime rates and sick pay but suspended when talks with the employer were set up at the Labour Relations Agency in Belfast on Thursday and Friday May 9th and 10th.
ICT's Ben Lewis said tonight that they had received a written undertaking from the men's union, the ATGWU, that there would not be further strike action on the following Tuesday, and further verbal confirmation at the talks, but it went ahead.
Mr Lewis added: "Following the unofficial action on 14 May, which was repudiated by the ATGWU, disciplinary proceedings for gross misconduct were instituted against a number of employees, some of whom have been dismissed."
Disciplinary proceedings are ongoing and it is believed that further sackings could follow.
Security at the airport was not compromised by any of the strike action, Belfast International confirmed, and passengers were not delayed.
PA