Prince William and Middleton
KARWAI TANG/ALPHA/GLOBE; Toby Melville/REUTERS/Landov
06/24/2007 AT 08:30 AM EDT
Following their April split
after dating for five years, Prince William
and former girlfriend Kate Middleton
have resumed their relationship, according to widespread coverage in British newspapers on Sunday.
The two, both 25, attended a party earlier this month at an army barracks where William is posted as an army officer, the reports say.
In addition, William has invited Middleton, who is an accessories buyer
at a company called Jigsaw, to the Concert for Diana
, in memory of his mother, scheduled for London's Wembley Stadium next Sunday, the Mail on Sunday
The paper also claims the couple kissed at the June 9 army party, and that Middleton will spend time with William, his brother Harry and Harry's girlfriend, Chelsy Davy, backstage at the Diana concert.
Per custom, a spokeswoman for William's Clarence House office declined comment on the stories. "We don't discuss William's private life, it's a matter for him," she said.
Earlier this month, Joss Stone denied a report
that she's close friends with the royal – who only last week, on Thursday (his birthday), gained access
to the estimated $500,000 to $600,000 annual interest generated by the $13 million left to him by his mother.