Atleast 13 Soldiers were killed in north-eastern Nigeria after an attack by Jihadists according to two army sources who spoke to AFP on Monday.

The sources said heavy gunfire and rocket-propelled grenades hit a military convoy in Gazagana village, in Yobe state on Saturday.

“We lost 13 soldiers in this ambush and several were injured,” an officer said.

But The Nigerian army, which tends to give far lower official figures for losses, said on Sunday that 28 jihadists had been “neutralised and only one soldier had died.

The convoy was headed for a military base at Buni Yadi, another 20 kilometres from Damaturu, said the second army source, who gave the same death toll.

The attack was blamed on the Islamic State West Africa Province group, an affiliate of the Islamic State Group.

Since 2009, the jihadist campaign in north east Nigeria has focused on Borno where the Boko Haram group is also active.

At least 36,000 have been killed in the 11-year conflict and about two million have been displaced from their homes.

Last week the nigerian defence forces spokesperson said the Nigerian military was on a mission to track and demolish terrorists hideouts.