British Prime Minister Theresa May has vowed that Islamist terrorists “will not prevail” in the wake of Tuesday’s murder of a Catholic priest in northern France.

Catholic Archbishop of Dublin, Diarmuid Martin, is concerned that the fatal stabbing of Fr Jacques Hamel, in France, may spur copycat killings.

Ireland’s Catholic primate Archbishop Eamon Martin joined in the voicing of global shock as he offered prayers to those affected by the terrorist murder of an 86-year-old priest at his church in France.

Special teams of police, social workers, mental health practitioners, and community and religious leaders are needed to try and identify potential lone- wolf terrorists, according to a security expert.