A police car patrolling a Republican area of Belfast was the target of a grenade in the night from Tuesday to Wednesday, police said Northern Ireland.
This incident comes just days before the December 12 legislative elections in the United Kingdom. Brexit is a particularly delicate subject in the British province, with a bloody past.
For three decades, nationalist Republicans, mostly Catholics, and Unionists, mainly Protestants, clashed in "Troubles", also involving the British Army, which caused 3,500 deaths.
The Good Friday peace agreement ended in 1998, establishing a division of executive power and an open border with Ireland, the maintenance of which was a crucial issue in the Brexit negotiations.
Serious threat
The threat level of terrorism in Northern Ireland is referred to as "Serious" by the authorities, which means that an attack is judged " highly probable ".
In April, Lyra McKee, a 29-year-old journalist, was shot dead in clashes in Londonderry on the Irish border. The New IRA, a dissident Republican group fighting for the reunification of Ireland, had admitted its responsibility.
A few months earlier, in January, a car bomb explosion in Londonderry sparked fears of a new surge of violence by paramilitary groups.
