Virginia Governor Ralph Northam apologized on Friday for a photograph in his 1984 medical school yearbook showing him and another person in racist garb at a party, but said he would serve out his term even as pressure piled on from fellow Democrats for him to step down.

Axar.az reports citing Reuters that, Northam indicated in a statement from his office he was one of the people shown in the photo, which depicted one person in blackface standing next to another in a Ku Klux Klan costume.

He did not identify which one was him and his spokeswoman did not respond to requests for further comment.

“I am deeply sorry for the decision I made to appear as I did in this photo and for the hurt that decision caused then and now,” Northam said in his statement.

Northam, who took office a year ago, said in a video posted later on Twitter: “I have spent the past year as your governor fighting for a Virginia that works better for all people. I am committed to continuing that fight through the remainder of my term and living up to the expectations you set for me when you elected me to serve.”

Among those calling for him to resign immediately were four recently announced Democratic candidates for president, Senators Kamala Harris, Cory Booker and Kirsten Gillibrand, and Julian Castro.

Senator Elizabeth Warren, a Democrat who has said she is exploring a run for her party’s nomination for president in 2020, also commented on Twitter.

“These racist images are deeply disturbing. Hatred and discrimination have no place in our country and must not be tolerated, especially from our leaders – Republican or Democrat. Northam must resign,” Warren said.

The Virginia-Pilot said on its website it obtained a copy of the photo from the Eastern Virginia Medical School library.