Northern Ireland Secretary Theresa Villiers told the House of Commons there was nothing British about the 'thuggish, lawless and despicable" behaviour of loyalist protesters. She said:
"There is nothing remotely British about what they are doing; they are dishonouring and shaming the flag of our country with their lawless and violent activities.They discredit the cause they claim to support."
Her comments came as the First Minister of Northern Ireland Peter Robinson said two senior members of his party were issued with death threats. Marc Mallet reports from Belfast.
More top news
Gay men in Northern Ireland will now be able to donate blood for the first time after a controversial lifetime ban was lifted.
A number of Cabinet ministers will begin a round of Brexit talks with foreign counterparts on Thursday.
Drinking moderately does not seem to affect a woman's fertility, a study suggests.