Skirmishes erupt at the

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Skirmishes erupt at the "peace wall" dividing Protestant and Catholic neighborhoods in Belfast, Northern Ireland, on Wednesday night. / Getty Images

The government of Northern Ireland is holding an emergency meeting on Thursday following days of unrest reminiscent of "The Troubles" that plagued the region for decades.

The latest violence in Belfast has erupted amid anger from Protestant unionists concerned they're being isolated from the United Kingdom and pushed into a union with the republic of Ireland due to post-Brexit trade rules.

For about a week now, young people in the city have torched vehicles and hurled bricks, fireworks and Molotov cocktails at police officers. In the past few days, youths have started throwing them over a concrete barrier, known as the peace wall, that separates a Protestant neighborhood from a Catholic area.

On Wednesday night, seven police officers were injured when masked activists in the Shankill Road area, a loyalist stronghold, hurled rocks and gasoline bombs and set a bus on fire.

On Belfast's Springfield Road, an area made up mainly of Irish nationalists, skirmishes broke out as objects were tossed over the wall, according to The Guardian.

Northern Ireland's assistant chief constable, Jonathan Roberts, said several hundred people on both sides of the wall were responsible for Wednesday night's violence, and he accused outlawed paramilitary groups of inciting it.

"We saw young people participating in serious disorder and committing serious criminal offenses, and they were supported and encouraged, and the actions were orchestrated by adults at certain times," he said.

"Last night was at a scale we haven't seen in Belfast or further afield in Northern Ireland for a number of years," Roberts said.

In a tweet, the Police Federation for Northern Ireland called for calm, saying, "These are scenes we hoped had been confined to history."

The 1998 Good Friday Agreement set up a power-sharing arrangement between Protestants and Catholics. It largely ended 30 years of political violence in Northern Ireland among Irish republicans, British loyalists and U.K.-armed forces that resulted in the deaths of more than 3,000 people.

Since the U.K.'s departure from the European Union at the beginning of the year, Northern Ireland has experienced shortages on grocery shelves that have been blamed on red tape and delays caused by new post-Brexit checks at ports in Northern Ireland. As part of the Brexit agreement, the EU insisted on the checks in exchange for allowing a soft border between Northern Ireland and Ireland.

Unionists loyal to Britain say the checks are a de facto border and undermine Northern Ireland's place in the United Kingdom.

Northern Ireland's first minister, Arlene Foster, of the pro-British Democratic Unionist Party, and Deputy First Minister Michelle O'Neill, of the nationalist Sinn Fein party, have condemned the unrest and attacks on police.

British Prime Minister Boris Johnson said, "The way to resolve difference is through dialogue, not violence or criminality." Meanwhile, Ireland's foreign minister, Simon Coveney, has called on local leaders to ease tensions.

The disturbances this week follow unrest over the Easter holiday in unionist areas in Northern Ireland's major cities.

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