LONDON, Feb. 21 (Xinhua) -- Sinn Fein's leader on Wednesday accused the British government of having no viable plan to address the ongoing political crisis in Northern Ireland.

Mary Lou McDonald told media that she feared "entrenchment and drift" in efforts to restore the executive, which collapsed over one year ago.

Her latest comments came one week after talks aimed at ending the deadlock at Stormont collapsed.

British Prime Minister Theresa May has held talks with Sinn Fein and the Democratic Unionist Party (DUP)) at Westminster as she stressed that her government remains committed to doing all it can to restore devolution.

McDonald, in an interview with BBC, accused May of "facilitating the DUP blocking" the restoration of power-sharing.

"We're disappointed that the government seems wedded to what they are calling 'a reflection period'," she said.