A prison where inmates spent an "unjustifiable" amount of time in cells had one of the worst daily routines inspectors said they had ever seen.

But army spokesman Sani Usman that "the military and other security agencies exercised maximum restraints despite the flurry of provocative and unjustifiable violence".

“In combination with other tactics, it’s a misuse of less-than-lethal weaponry ... It’s unjustifiable.”