Senior members of the Irish Government have called on Sinn Fein to clarify questions around a complaint made about TD Brian Stanley and other “serious” issues.

The party has been dogged by a series of controversies in recent weeks, including the fallout around former party press officer Michael McMonagle, and revelations that an unnamed Sinn Fein member resigned from the party after allegedly sending inappropriate messages to a 17-year-old.

McMonagle, 42, from Limewood Street, Londonderry, admitted a series of offences, including attempting to incite a child to engage in sexual activity.

TD Brian Stanley has resigned from the party (Niall Carson/PA)

The party has come under pressure over references provided to McMonagle by two former press officers for a job with the British Heart Foundation.

At the weekend, it emerged that Laois-Offaly TD Mr Stanley, chair of the Public Accounts Committee, had resigned from the party and would run as an independent in the next general election.

Sinn Fein said a complaint made about Mr Stanley and a “serious” counter-allegation were referred to An Garda Siochana on Sunday.

On Tuesday afternoon at 4pm, statements were due to be given in the Dail chamber about child protection issues, which government ministers have said provides Sinn Fein with a chance to clarify matters.

Speaking on his way into Cabinet on Tuesday, Taoiseach Simon Harris said that “political potshots” should not be taken when the issues at hand were “so serious and so grave”.

“What we shouldn’t see today is whataboutery, we shouldn’t see political theatrics,” he said.

“What we should see today is the leader of Sinn Fein take the opportunity to answer basic questions around the timeline, around process and around extraordinarily serious issues to do with the protection of children. We shouldn’t need to have a drip-feed of information.

“I’ve consistently said I believe the leader of Sinn Fein – my political difference aside – to be a decent person, and today is an opportunity to put all the information out on the table for once and for all.

“I’ve been asked about Sinn Fein now for about two weeks on an almost daily basis. There’s an opportunity today to provide the information on what are extraordinarily serious and grave issues, and I hope Deputy McDonald takes that opportunity and does the right thing.”

Tanaiste Micheal Martin said that “generally, Sinn Fein’s processes have been very secret”.

“Sinn Fein always puts the party first, and I’ve been saying this for quite a long time, so they do need to look at their internal processes and this sort of culture of secrecy around almost everything it does,” he said.

Green Party leader and Children’s Minister Roderic O’Gorman said that the matter was “vague”.

“I think there are still more questions than answers out there at the moment, I think it would be useful for Sinn Fein just to clarify why they went to the gardai now and didn’t go to the gardai in August in terms of their understanding of the seriousness of the allegations,” he said.

“I think it would also be useful for Deputy Stanley to provide clarification as well.”