Sen. Chris Van Hollen, Maryland Democrat, announced Sunday evening that he had suffered a minor stroke “this weekend.”

In a statement posted to Twitter, Mr. Van Hollen said he had gone to George Washington University Hospital after feeling lightheaded and suffering “acute neck pain” while giving a speech in western Maryland.

“Earlier today, an angiogram indicated that I had experienced a minor stroke in the form of a small venous tear at the back of my head,” he said.

Mr. Van Hollen said, citing his doctors, that his stroke will have “no long-term effects or damage.”

He said that he will remain at George Washington hospital “for a few days” but expects to return to his Senate duties “later this week.”

Mr. Van Hollen was the second prominent Democratic politician to announce Sunday that he had suffered a stroke over the weekend.

Lt. Gov. John Fetterman of Pennsylvania also had a stroke, in his case occurring before voters will decide the fate of his run for the state’s U.S. Senate seat.

Mr. Fetterman, who has comfortably led in polls before Tuesday’s Democratic primary, also said he expected a full recovery with no long-term effects.