A motion calling for full disclosure of information British and Irish security services received about the Omagh bomb has failed to win assembly backing.

The motion was proposed by the Alliance Party and supported by Sinn Fein and the SDLP.

A DUP amendment was instead passed by an oral vote, with backing from the Ulster Unionists.

The DUP claimed the Alliance motion failed to condemn the Real IRA bombers and lacked urgency.

The amendment called on the UK government to investigate the matter "in an open and transparent way in cooperation with the Irish government".

Lord Morrow of the DUP told the assembly his party was "in favor of full disclosure, come what way".

But Alliance deputy leader Naomi Long said this was not part of the amendment.

Earlier, the father of one of the Omagh bomb victims welcomed the debate on the 1998 atrocity.

Godfrey Wilson's 15-year-old daughter Lorraine was killed in the explosion in the County Tyrone town along with 28 other people.

"The biggest worry is that this would become a political football - we've been waiting 10 years to get justice and we haven't got it," said Mr Wilson.

"I feel that there's a lot of questions to be asked before Omagh and a lot of questions to be asked after Omagh. And with the Panorama programme in the public domain, GCHQ has questions to answer, but not only the British state, the Irish state as well."