Vernon Coaker MP, Labour's Shadow Northern Ireland Secretary, has commented after five live mortar bombs were intercepted by police in Londonderry.
Speaking from Letterkenny in county Donegal, just across the border from Derry, where he is attending the British Irish Parliamentary Assembly, he said:
"Once again only the bravery of the police and security services, and the Army's bomb disposal team, has prevented loss of life and injury.
"It shows again the need to be vigilant about the serious threat that exists in Northern Ireland.
"These terrorists who wish to destroy the peace and progress represent no-one and offer nothing.
"We must all continue to work together to defeat them."