Political talks planned for London next week involving all the Northern Ireland parties have been postponed.
British Government sources say they still hope to hold the discussions before June.
The sources added that more work was required.
The discussions were due to follow the publication of the Independent Monitoring Commission's first report on continuing paramilitary activity.
The report is set to be published in the House of Commons by the Northern Secretary, Paul Murphy, tomorrow.
A legal attempt to prevent the publication of the report was rejected by the High Court in Belfast this afternoon.
The most controversial task undertaken by the four-person Independent Monitoring Commission had been to probe the allegation that the IRA were involved in the alleged abduction of dissident Republican, Bobby Tohill.
A lawyer for the four men charged in connection with the abduction claimed that publication of the IMC report would prejudice their trial.
However, this argument was rejected by the High Court in Belfast.
The IMC's report will list ongoing criminal activity by Loyalist and Republican paramilitaries.
It will also recommend that the British government deduct finances from Sinn Féin and the Progressive Unionist Party because of this ongoing activity.
Sinn Féin’s Alex Maskey has said that any such action would be unacceptable.
