Trade hub a ghost town after terrorist rule

As the second biggest town in northern Borno State, Bama was home to some 270,000 residents and a major trading post on the road to Cameroon.

But today, 85 percent of it is destroyed.

"Bama is no more," said teacher Mustapha Mallam, who like tens of thousands of others, lost everything when he had to flee his home when Boko Haram took over in September 2014.

The fighters "burnt everything" before being evicted by the Nigerian army in March this year, he said.

The only signs of life here now are a handful of soldiers and workers who are trying to repair Bama's main avenue.

The bush, meanwhile, is reclaiming many of the abandoned homes in the once lush town, which lies just 70 kilometres (about 40 miles) from the state capital Maiduguri.

'Hell on earth'

During the seven months under Boko Haram rule, Bama was "hell on earth," said Ali Mbusube, who now heads a camp for displaced people on the fringes of the town.

"There was no food, no school, not even a hospital -- and if you stole something they would cut off your hand," he said.

The camp now houses a little over 10,000 people who either escaped or survived the reign of terror.

"During the day, they (would) bring all the men aged over 18 into the prison and kill them," Mbusube said.

Mallam said he found "nothing but ash" when he returned to Bama the first time.

"It was a very peaceful city," he said recalling how his seven children used to play outside in the yard.

Maiduguri has been at the epicentre of Boko Haram's seven-year insurgency that has left at least 20,000 people dead in Nigeria and border areas of neighbouring Niger, Chad and Cameroon.

Another 2.6 million have been left homeless.

A sustained counter-offensive has seen the military retake swathes of territory from the insurgents, but the jihadist group still poses a security threat to civilians.

The charred remains of what was once a mosque, its pockmarked walls blackened by fire, is only recognisable by the small green minaret, its star and crescent silhouetted against the sky.

Bama's main hospital is also in ruins and now serves as a playground for children living in the nearby camp for the displaced.

'They took everything'

Before they left, the invaders stripped Bama bare.

"There was no more zinc, no more wood, even junk has disappeared. They took away with them what they did not burn," Mallam said.

The devastation across Borno State -- the area worst hit by the insurgency -- is equally alarming. In March, the World Bank put the cost of the destruction at $5.9 billion (5.5 billion euros).

Nearly a million homes, or 30 percent of the total, have been destroyed along with 500 primary schools, nearly 40 high schools as well as some 200 hospitals and health centres.

Borno State governor Kashim Shettima says repairing the destruction is a Herculean challenge, with the extent of damage to the water and electricity system too widespread to gauge.

"A lot still needs to be done and all our communities are begging for support," he said.

Although reconstruction work has begun in Bama and the nearby town of Konduga, Shettima has set an ambitious target of having most of the displaced back home by May.

Innovative alarm system

Security remains a major challenge in Bama, where heavily armed soldiers patrol the town, protecting major intersections round the clock from checkpoints buttressed with concrete blocks and sandbags.

Although the Boko Haram fighters have left, many have taken shelter in the nearby Sambisa forest about 30 kilometres away -- and they regularly raid Bama to steal provisions and equipment.

But the soldiers have come up with an innovative alarm system, lining the outlying entry points into the town with corrugated metal sheets which make a noise when the jihadists step on them during nighttime raids.

The army, which guards about a dozen camps for the displaced in the area, is also regularly targeted by suicide bombers and therefore on guard against new arrivals who are often suspected of being jihadists.

This extra security has also created difficulties, with Mohamed Mustapha, 70, spending 28 days in the town's prison while officials grilled his former neighbours before he was cleared to go back in.

"The soldiers even check the palms of young men as there are clear traces if they have been habitually holding Kalashnikovs," he said.

"That's how they unmask the guilty."