The UNITE trade union and management at Aviva Insurance have met for a second time amid fears of possible job losses at the company's Irish operation.

Union sources say the company has neither denied nor confirmed reports that between 300-500 jobs will be cut at the company.

Speaking after the meeting, Brian Gallagher of UNITE said the union was told that no decision had been taken on restructuring and that the company was not in a position to confirm any number of job losses.

He said staff morale was on the floor and UNITE members were angry that the story was broken in the media before any engagement with workers.

Aviva said its "business review is ongoing and ... no decisions have been taken at this stage".

The meeting followed a report on RTÉ's Prime Time programme last night, which the union described as "extremely concerning".

UNITE represents around 1,300 of the 2,000 staff employed by Aviva in Ireland.

An earlier meeting this morning began at 8.30am and lasted approximately 45 minutes.

Union officials sought assurances about jobs at Aviva and management then agreed to get back to the officials later this morning.

The Taoiseach earlier told the Dáil that it would be inappropriate to comment on potential job losses at Aviva until the company had concluded its analysis.

Enda Kenny said it was obvious that Aviva was going through a restructuring phase.

He said the IDA had been in contact with Aviva, but that it could not make a judgement until the company makes its own decisions in its review.

Mr Kenny was responding to Sinn Féin's Mary Lou McDonald, who said it was clear that the Government's jobs initiative had failed.

She said the evidence was in the swelled ranks on the dole queues and this morning was the latest example, with Aviva.

She said she did not accept the Taoiseach’s position that no contact had been made with Aviva, and accused him of passing the buck to the IDA.

Earlier, speaking on RTÉ's Morning Ireland, Colm Quinlan, regional officer with UNITE, said there was concern following a decision by Aviva in June to relocate its headquarters from Dublin to the UK.

However, it had no indication about the number of jobs that may be affected.

Aviva Insurance has said no decision has been made about job losses at its Irish operation.

The company said that, given the difficult economic environment here, it is considering various options to ensure it has a sustainable and competitive business.