A man fired from a food processing plant beheaded a female co-worker and attacked another before he was shot and wounded by a company executive, Oklahoma police said on Saturday.

Authorities said that the gruesome attack happened on Thursday afternoon when the suspect, Alton Nolen, 30, entered Vaughn Foods Company in Moore, Oklahoma, near Oklahoma City, and attacked the two employees with a knife.

According to the statement by the Moore Police Department, Nolen, who had just been fired from his job at the plant, severed Colleen Hufford’s head with a knife and attacked Traci Johnson with the same knife.

However, police said that Nolen was angry about being terminated.

According to authorities, the company’s chief operating officer, Mark Vaughn, who is also a part-time sheriff’s deputy, confronted Nolen and shot and wounded him, ending the assault.

The FBI is investigating the case since employees told police that Nolen had been trying to convert several co-workers to Islam.

The attack appeared to copy the videotaped beheading of two American journalists and a French tourist carried out by Islamic State terrorists.

However, police said that they believed the violence was triggered by Nolen being fired and was not an act of terrorism.

NAN