The attack in Jos, North Central Nigeria, took place on Monday night.
Three security guards serving with WAMCO Nigeria Limited, a dairy company located in Vom, Jos South Local Government Area of Plateau State, were on Monday night killed by yet to be identified attackers.
A witness, who claimed to be at the scene of incident, told journalists that the well armed attackers stormed the company in a large number.
He said the attackers overpowered the security guards on duty because of the sophisticated weapons and number of attackers.
Confirming the incident, the media officer of the Special Task Force, STF, on Jos crisis, Salisu Mustapha, said men of the force are investigating the incident.
Mr. Mustapha said he could not yet provide full details of the incident.
The witness said that the remains of the victims have been deposited at the Plateau Specialist Hospital in Jos.
Following the incident, the routine stop and search by security officials in and around Jos, particularly along the Vom – Manchok Highway leading to Kaduna State, has intensified.