The students, under the umbrella of the National Association of Benue State Students (NUBESS), issued the ultimatum in a communiqué released after their general assembly at Ministry of Education in Makurdi.
Benue Police Commissioner Fatai Owoseni said around 30 suspected Fulani herdsmen "attacked the venue of a burial ceremony and the church where the two reverend fathers were holding mass", according to AFP.
"But in the council ward itself over 15 persons were killed in the attack which commenced late Tuesday till early Wednesday, though the number might increase because the search for more bodies is still ongoing".
Fulani militia-related violence has been escalating since 2015, with the central states of Nigeria, and particularly Adamawa, Benue, Nasarawa, Plateau, Taraba and southern Kaduna, experiencing cyclical violence.
In a Facebook post on 3 January, Father Gor reportedly wrote that his community was "Living in fear". They still go grazing around us. "No weapons to defend ourselves [sic]".
It also comes barely a few days after Nigerian soldiers stormed Naka town in Gwer West Local Government Area of the state and set dozens of houses on fire.More news: Takeda lifts Shire takeover bid again
"We are under siege and I do believe that this has gone beyond the normal herdsmen-farmers crisis; this is a new dimension of attack and it has never happened before".
"How can anybody expect Benue State for instance to contribute its own share of the $1bn security votes when the nation security architecture is not created to protect their people?"
At least 35 people were killed and some are missing after an attack on a village in southeastern Nigeria, local media reported Tuesday.
Among the victims were two priests; Rev Fathers Joseph Gor and Felix Tyolaha, two primary school headmasters; Peter and Ape Chia, a secondary school principal; Michael Tor and 14 other worshipers.
The Ekiti State Governor, Ayodele Fayose, has raised the alarm that Nigeria was drifting towards a state of anarchy, calling on the global community to intervene and rescue the country from turning to a war zone, where mass killings is a usual occurrence.