Tonight’s show (October 25) at the Bradley Center in Milwaukee, Wis., and the show scheduled for October 26, at the Hartford Civic Center in Hartford, Conn., have been canceled.

The tour will resume on Thursday, October 28, when Kelly and Jay-Z kick off the first of five dates in the New York metropolitan area with a concert at the Nassau Coliseum in Uniondale.

This date will be followed by appearances at Madison Square Garden in New York City on October 29 and 30; a show at the Continental Arena in East Rutherford, New Jersey, on the 31st; and another appearance at Madison Square Garden on November 1.

“The artists want to apologize to everyone who bought tickets to the Milwaukee and Hartford shows,” a tour spokesman said.

“They are as disappointed as anyone that they won’t be able to perform as scheduled. These concerts are extremely complicated stage shows with a multitude of special effects, dance numbers, and lighting and sound cues, and unfortunately we need to take a few days off to work out some technical problems.”

Fans with tickets for the cancelled concerts areentitled to full refunds. They should contact the box office or agency where they purchased their tickets for details.