British Airways cabin crew are to stage a further six days of strikes next month in a dispute over pay.
Members of the union Unite will walk out from February 5-7, and again for three days from February 9.
The union is in dispute over members of BA's so-called mixed fleet, who joined the airline after 2010 and are on worse pay rates than other staff, Unite says.
The crew went on strike last week, but the airline said only a small number of flights had to be cancelled.
BA said: "We have flown all customers to their destinations during the previous strikes by mixed fleet and we will ensure this happens again. We will publish more details on Tuesday once we have finalised our contingency plans.
"Our pay offer for mixed fleet crew is consistent with deals agreed with Unite for other British Airways' colleagues. It also reflects pay awards given by other companies in the UK."