LONDON, May 24 -- Oasis have been seen arriving at rehearsals in the UK capital ahead of their long-awaited reunion tour, but frontman Liam Gallagher was notably absent.

The Britpop legends are set to perform live together for the first time in 16 years, beginning this summer with a series of UK and Ireland dates alongside Richard Ashcroft and Cast, including seven shows at Wembley Stadium.

"Noel and Liam are rehearsing separately for now and won't be going into a studio together until next month," UK tabloid The Sun wrote, citing an anonymous source.

"Once Noel has finished up, Liam will be coming in to rehearse with the band."

NME reported saying photographs showed Noel Gallagher, Gem Archer, Paul "Bonehead" Arthurs and bassist Andy...