As if the least about the Islamic extremist have not been heard, Suspected Boko Haram extremists have again sent 48 fish vendors to the their early graves after setting up a roadblock near the country's border with Chad, the head of their association said Sunday, being the latest violence to hit the country's volatile northeast.
"Scores of Boko Haram fighters blocked a route linking Nigeria with Chad on the shores of Lake Chad on Thursday and killed a group of the said numbers of fish traders on their way to Chad to buy fish," said Abubakar Gamandi, head of the fish traders association.
He said the attackers set up a barricade at in Borno state, and stopped a convoy of fish vendors around midday, slaughtering some of them and drowning others in the lake.
"The Boko Haram gunmen slit the throats of some of the men and tied the hands and legs of the others before throwing them into the lake to drown," said Mr Gamandi, speaking to AFP by telephone from Maiduguri, the Borno state capital.
The motive for the gruesome attack was somehow not clear. we are still wondering if it is robbery or for other reasons for the killings. Boko Haram has at times targeted residents seemingly indiscriminately in its deadly insurgency.
Doron Baga, 180km from Maiduguri, is the base of the Multi-National Joint Task Force (MNJTF), comprising troops from Nigeria, Chad and Niger fighting the Islamist group.
The MNJTF was formed in 1998 to fight trans-border crime but its mandate was expanded as part of efforts to tame the Boko Haram insurgency in the restive region.
Mr Gamandi claimed the assailants killed all of their victims without using their guns.
"The attackers killed their victims silently without the use of the gun to avoid attracting attention from the multinational troops," he said.
Kaloma Zarami, a fish vendor in Maiduguri, said he learned of the killings from other traders in Doron Baga.
"The news came to us late yesterday through some of our colleagues who came from Doron Baga to inform us of the incident because there is no telephone service in the area," he said.
"We lost 48 people in the attack. Some were slaughtered and others were thrown into Lake Chad with their hands and legs tied and left to drown," he added.
A military officer in Maiduguri confirmed the attack but said details were sketchy.
"We heard of the attack near Doron Baga but we don't have any details because the area falls under the operational jurisdiction of the MNJTF," the military officer said.
News of the attack was slow to emerge due to the destruction of mobile phone towers in the area by Boko Haram in previous attacks.
Incessant Boko Haram attacks have disrupted fishing and farming along the shores of Lake Chad. Fishermen from Doron Baga have been forced to abandon fishing and have turned to importing dried fish from neighbouring Chad.
Mr Gamandi said the Dogon Fili route provided the safest passage for traders from Doron Baga to Chad as other routes are infested with Boko Haram gunmen who rob and kill travellers.
Last December at least seven fishermen were killed when Boko Haram Islamists attacked Doron Baga in a night-time raid that left many homes burnt.
In August, the Islamists raided Dogon Baga and kidnapped 97 people after killing 28 villagers.
The hostages, including women and children, were loaded on speed boats and ferried across the lake into Chad.
Chadian troops rescued 85 of the hostages when they intercepted a convoy of buses transporting them from the shores.
Counting from 2009 when the insurgency began, More than 13,000 people have been killed and Boko Haram is now said to be in control of more than two dozen towns in Nigeria's northeast in its quest for a hard line Islamic state.
The Islamist have made major gains over the past 18 months and violence has continued at a relentless pace in three northeastern states that had long been under a state of emergency.
The emergency measures expired this week and President Goodluck Jonathan has yet to get a parliamentary approval for an extension