At least 40 farmers and fishermen have been killed in an attack in north-east Nigeria.
Terrorist group Boko Haram are suspected to be behind the massacre and there are fears the death toll could be as high as 60.
No one has yet claimed responsibility for the attack.
The farmers were reportedly rounded up and summarily killed by armed insurgents in retaliation for refusing to pay extortion to one militant.
The attack on Saturday in a rice field in Garin Kwashebe, Borno state, came on the same day that residents were casting votes for the first time in 13 years to elect local councils, although many didn’t go to cast their ballots.
Nigerian President Muhammadu Buhari condemned the "senseless" killings.
“I condemn the killing of our hardworking farmers by terrorists in Borno State," Mr Buhari said.
"The entire country is hurt by these senseless killings.
"My thoughts are with their families in this time of grief."
Mr Buhari said the government had given the armed forces everything needed “to take all necessary steps to protect the country’s population and its territory.”
A member of the House of Representatives, Ahmed Satomi, who represents the Jere Federal constituency of Borno, said at least 44 burials were taking place Sunday.
“Farmers and fishermen were killed in cold blood. Over 60 farmers were affected, but we only have so far received 44 corpses from the farms,” he said.
Boko Haram and a breakaway faction, the Islamic State West Africa Province, are both active in the region.
Boko Haram’s more than decade-long insurgency has left thousands dead and displaced tens of thousands more.
Officials say Boko Haram members often force villagers to pay illegal taxes by taking their livestock or crops but some villagers have begun to resist the extortion.
Mr Satomi said the farmers in Garin Kwashebe were attacked because they had disarmed and arrested a Boko Haram gunman on Friday who had been tormenting them.
“A lone gunman, who was a member of Boko Haram came to harass the farmers by ordering them to give him money and also cook for him. While he was waiting for the food to be cooked, the farmers seized the moment he stepped into the toilet to snatch his rifle and tied him up,” he said.
“They later handed him over to the security. But sadly, the security forces did not protect the courageous farmers. And in reprisal for daring them, the Boko Haram mobilised and came to attack them on their farms.”
Insurgents also torched the rice farms before leaving, he said.