Nigerian Islamist militant group Boko Haram shot dead two Indians after storming their factory in Maiduguri.
"Information available indicates that suspected Boko Haram terrorists attacked a gum arabic factory operated by Indians located at Bayan Quarters in Maiduguri on Wednesday," said Sagir Musa, spokesman for the military Joint Task Force.
Musa was quoted by the Reuters as saying that the incident led to the death of two Indians with one wounded, who is receiving treatment at the hospital.
He said the attackers also took around $600.
The two Indians killed in the attack were identified as Shanker Saha and Bokul Chander Mondal. The third Indian, Biresh Yadav has been battling for his life at the Maiduguri University Teaching Hospital.
The Indian High Commissioner in Abuja has reportedly written to the Nigerian Foreign Ministry and the local Governor seeking a thorough investigation.
"We are awaiting details of who the perpetrators were. No organisation has claimed responsibility; neither has the Nigerian government told our mission whom it suspects to be behind the attack," The Hindu quoted Ministry of External Affairs sources, as saying.
Boko Haram has been attacking Christians and bombing churches in a campaign to create an Islamic state in Nigeria. The Islamic sect has killed over 900 people in northern Nigeria since it launched an uprising in 2009.
Earlier this month, hundreds of assailants armed with guns and machetes stormed a dozen Christian villages in the city of Jos, killing 58 people.
"We thank God for our success in the attack on Christians at Barikin Ladi and Riyom, whereby security agents, Christians, and two state and national assembly members were killed," stated a letter signed by Boko Haram leader Abul Qaqa.
The sect even warned "Christians all over the country to embrace Islam or they will be attacked".