WASHINGTON (AP) — President Donald Trump has added to the intrigue surrounding his wife, Melania's, recent absence from the public eye following kidney treatment.

Trump told reporters Friday that the first lady wanted to join him on a trip to Canada. He's attending an annual summit of leading industrialized nations. But he said he's going without her because she had a four-hour operation and doctors told her not to fly for a month.

The first lady's office announced May 14 that she had undergone a procedure to treat a benign kidney condition.

She spent five days in the hospital before returning to the White House. Her office has declined to release additional details.

Mrs. Trump made her first public appearance in nearly a month earlier this week.