A US group of Irish American political leaders and diplomats has met with the UK's Northern Ireland Secretary Brandon Lewis in Washington.

The Ad Hoc Committee to Protect the Good Friday Agreement said the meeting was "cordial and candid", and that it focused on the Northern Ireland Protocol as well as the UK's proposed amnesty to address the legacy issues of the Troubles.

Former US Congressman Bruce Morrison, who is the co-chair of the committee, said that members stressed that outstanding issues with the Northern Ireland Protocol should be resolved between the UK and EU and that the focus should be on the practicalities of implementing the measures.

"On the legacy issue, we suggested that the UK needs to rethink its amnesty proposal given the lack of support among stakeholders in Northern Ireland," Mr Morrison said.

Last month, the committee wrote to UK Prime Minister Boris Johnson criticising the proposed amnesty.

Members expressed their dismay at the plan and described it as alarming to human rights experts.

Under the proposals, the British government would create a statute of limitations which would end all prosecutions for incidents up to April 1998 and would apply to military veterans as well as ex-paramilitaries.

The proposals, which Mr Johnson said would allow Northern Ireland to "draw a line under the Troubles", would also end all legacy inquests and civil actions related to the conflict.

"We find this proposal to be at odds with both the spirit and architecture of the Good Friday Agreement," the Ad Hoc Committee's letter to Mr Johnson stated.

The committee was formed over two years ago by leading political leaders and diplomats who have a history of supporting the peace process in Northern Ireland.

The group includes five former US Ambassadors, several former US Special Envoys to Northern Ireland as well as leaders of Irish American organisations.