The campaign for Sen. Bernie Sanders (I-Vt.) announced Wednesday that the 78-year-old Democratic presidential candidate experienced chest discomfort during an event Tuesday, and medical tests revealed "blockage in one artery." Sanders subsequently had two stents inserted.

The statement said the senator is "conversing and in good spirits," but that his events and appearances will be canceled "until further notice."

News: Senator Bernie Sanders had surgery for a blockage in one artery and two stents were “successfully inserted,” according to a statement from his campaign.



His campaign says he’s cancelling events until further notice pic.twitter.com/OVj44nwqfP — Yashar Ali (@yashar) October 2, 2019

The campaign is also canceling an Iowa television advertisement, The New York Times reports.

The Sanders campaign also canceling Iowa TV buy, per ad tracker, which was supposed to begin 10/3 https://t.co/wmFmOHXmDg — Shane Goldmacher (@ShaneGoldmacher) October 2, 2019

While speculations about how this could affect Sanders' campaign and the Democratic primary as a whole are sure to roll in, the priority right now is Sanders' health, and his fellow candidates are already wishing him the best. Tim O'Donnell

NEW: Fellow 2020 Democrat Julián Castro: "We want to send our best wishes for a quick recovery to Bernie Sanders today. Our whole team has you in their thoughts.” https://t.co/JVF7OmlBXV pic.twitter.com/Pkusq0OdPc — ABC News (@ABC) October 2, 2019

Update 11:40 am ET: The Sanders campaign has reportedly clarified they are postponing, not canceling the Iowa ad, HuffPost reports.