New concert dates should be announced.

Mitski performs at the House of Blues in Boston, October 2018. Ben Stas for the Boston Globe

Mitski’s two concerts in Boston were postponed due to a positive COVID-19 test among his tour.

“New dates will be announced shortly and all tickets will be honoured,” a message on his Twitter account said.

Mitski was scheduled to perform Monday and Tuesday nights at Roadrunner, Boston’s newest concert venue. just roadrunner opened last week with a performance by Billy Strings. The venue is expected to host a variety of acclaimed artists this spring and summer, including LCD Soundsystem, Big Thief, Lucius, Olivia Rodrigo and Beach House.

Mitski released her latest album, “Laurel Hell,” in early February.

“She named her latest, ‘Laurel Hell,’ after a folk term for thickets of mountain laurel found deep in the southern Appalachians,” an article in rolling stone noted.

If the tour continues as planned, Mitski is ready to perform a sold-out show at Radio City Music Hall in New York City on March 24 before continuing with a sold-out show at Franklin Music Hall in Philadelphia on March 25.