A small aircraft carrying oil workers to the Unity State of South Sudan crashed during his take -off on Wednesday, killing 20 people, the area’s intelligence minister said.

According to Reuters, the plane had left for the capital Juba, said Gatwech Bipal.

Passengers were oil pioneer operating Company (GPOC), a joint venture that includes China National Petroleum Corporation and the Nile Petroleum Corporation, added. Among the dead were two Chinese nationals and one Indian, according to him.

President Salva Kiir said engineers and technical staff were among the dead and pledged a thorough and rapid investigation to determine the causes of the crash.

Bipal did not give more details about the conditions. Media reports had initially reported the number of dead to 18, but Bipal told Reuters that two survivors were later died. A person survived As Reuters reports.