Published Thursday, 10 May 2012
Workers are protesting across the UK. (© NIPSA)
The industrial action came as part of a national day of protest, with up to 400,000 union members taking part in demonstrations across the UK.
Around 2,000 Home Civil Service members of the Public and Commercial Services Union (PCS) walked out in NI, including customs and Border Agency staff.
They organised picket lines outside their places of work, with two major lunchtime rallies taking place in Belfast and Londonderry.
Trade unionists from NIPSA, Unite and UCU also participated in the 24-hour strike action on Thursday.
They protested against what they call attacks by the Coalition Government on pensions, claiming they will be forced to work longer and get less when they retire.
General Secretary of NIPSA, Brian Campfield, said: "The Government attack on public service pensions is an integral part of its austerity agenda which has, at its core, the objective of making the ordinary citizen pay for a financial and economic crisis that is not of their making.
"What we are witnessing is not just a series of measures to reduce public expenditure but a strategy to introduce a US style of public service provision.
"This will have the private sector at its heart and will undermine the provision of important public services free at the point of use, in favour of an insurance and direct payment based approach, which will lead to greater inequality and social exclusion."
The walkout followed a massive strike organised by public sector workers last November.
Most unions remain opposed to the pension reforms, with the fresh action fuelled by ministers making clear in the Queen's Speech on Wednesday that they would press ahead with the changes.
Cabinet Office minister Francis Maude has described the strike as "futile" and insisted that talks over pensions will not be reopened.
"It is very disappointing that a handful of unions insist on carrying on with futile strike action which will benefit no one," Mr Maude said.
"We would urge these union leaders to reconsider their position. Pension talks will not be reopened and nothing further will be achieved through strike action."
© UTV News