It's been nearly a year since her husband, son and brother-in-law were beheaded by Islamist militants waging a brutal insurgency in northern Mozambique.

"I managed to escape," she told AFP, struggling to speak about her loss.

"Now I am here in Metuge," she said, standing in front of her tent at a camp for displaced people on the outskirts of Pemba, the capital of the northern Cabo Delgado province.

Shortly after her family members were killed in February, Ali fled her home in Quissanga district and walked 60 kilometres (40 miles) over two days.

She sought refuge at the 25-Junho camp, named after the southeast African nation's independence day June 25, which shelters 16,000 of the half a million people displaced by the extremist violence.

In the face of such tragedy, the widow now seems distant, removed from reality.

Her immediate concern is finding enough food for herself, her three children and three grandchildren, all of whom share the tiny tent donated by the World Food Programme.

"I have not received any support since I arrived," she said, although her two sons receive food rations donated by humanitarian agencies.

A jihadist group has caused havoc in gas-rich Cabo Delgado over the last three years, with beheadings and the torching of villages becoming hallmarks of its campaign to establish an Islamist caliphate.

Little is known about the jihadists known locally as Al-Shabab, which has no known link to the group of the same name operating in Somalia, but it has pledged allegiance to the Islamic State.

The group has staged more than 700 organised attacks since launching the insurgency in 2017, according to the US-based Armed Conflict Location & Event Data (ACLED) group.

More than 2,400 people have been killed, about half of them civilians, ACLED said.

Last month the militants dismembered five men and 15 teenage boys who had been participating in a male initiation ceremony.

In April, they shot dead and beheaded more than 50 youths for allegedly refusing to join their ranks.

- 'I can't eat or sleep' -

Muanassa Amulia, 64, also lives at the camp.

The insurgents killed her son and kidnapped her granddaughters, but not before badly beating her during a raid in September.

She had been looking for food in the fields with a few other villagers when the militants arrived.

They were rounded up and forced to march back to their village, where their homes had already been set on fire.

"They beat the women, then took one of the men into the bush five metres (16 feet) away, and cut off his head at the neck. They also took another man and killed him," Amulia said.

"They only beat us women, but they took the girls, my granddaughters, with them."

With tears streaming down her face, she said in a choking voice that the men then "continued to hit me hard".

"After hours of long torture, they left us and took two girls, my granddaughters".

She relives the pain every day.

"Even today, when I think about what happened, I can't eat or sleep," she said, sitting in front of her tent, wearing a floral blue capulana-style headwrap.

"I cry when I think of my sons and granddaughters who were taken by the attackers. But up to now they haven't come back. I don't know if they're alive."

Now she feels powerless, shrouded in despair. 

"I think and pray every day asking God for my granddaughters to come back, but nothing happens."