Northern Ireland's First Minister Peter Robinson and Deputy First Minister Martin McGuinness on Friday condemned the bullet sent in the post to a primary school as "utterly contemptible."
A bullet was sent in the post to a primary school in Tobermore of Northern Ireland, according to a statement released Friday by the Office of the first minister and deputy first minister of Northern Ireland.
"Sending a bullet to a primary school is utterly contemptible," the ministers said. "We urge anyone with any information on these incidents to give it to the PSNI to ensure those responsible are brought to justice."
Meanwhile, another report from the Britain's Sky News said on Friday that letter bombs were spotted at postal sorting offices in Derry/Londonderry and Lisburn of Northern Ireland, while local media reported at least one of them was addressed to Maghaberry Prison in Lisburn.
The ministers also condemned the letter bombs discovered in the postal sorting offices.
"We utterly condemn the recent letter bombs discovered in postal sorting offices in Derry/Londonderry and Lisburn," they said.
"The people behind these letter bombs are opposed to the democratic will of the people and want to drag us back to the past." the ministers added. "They have no respect for the postal workers, the wider community or the future."