MANILA, Philippines — Francisco “Isko Moreno” Domagoso has resigned as chairman and chief executive officer (CEO) of North Luzon Railways Corp. (Northrail), citing personal reasons.

In his letter to President Duterte yesterday, Domagoso said: “Due to personal reason, I would like to tender my irrevocable resignation as member of the board of directors and as chairman and CEO of Northrail effective immediately.”

Cesar Chavez, undersecretary for rails at the Department of Transportation (DOTr), said in a text message that it is not clear whether the President has accepted Domagoso’s resignation.

Domagoso said he is grateful for the opportunity given to him to serve under the Duterte administration.

“The experience I have gained is indeed enriching and has taught me valuable knowledge about the dynamics of national government, specifically running a government-owned and controlled corporation,” he said.

Asked if his resignation is related to the 2019 midterm polls, Domagoso said he has no plans for 2019 yet.

Domagoso was a senatorial candidate in last year’s elections. He was appointed by Duterte to the Northrail in July 2016.

Prior to running for the Senate, Domagoso served as vice mayor of the city of Manila for many years.

Northrail is a subsidiary of the Bases Conversion and Development Authority and an attached agency of the DOTr.

Northrail’s primary purpose is to develop, construct, operate and manage a railroad system to serve Metro Manila, Central Luzon and Northern Luzon.