LOS ANGELES — 

Van Halen is postponing some dates on its summer concert tour.

A source familiar with the tour who was not authorized to speak publicly confirmed to The Associated Press that some of the band's long-scheduled performances this summer are being postponed. The group's website lists active tour dates through June 26.

Dozens of additional shows had been planned and there was no immediate reason given for the postponements. Representatives of the band and AEG, which is promoting the concerts in some regions, did not respond to messages from the AP on Thursday.

Van Halen 2012 Tour Schedule:

5/19 — St. Paul, Minn., Xcel Energy Center
5/22 — Kansas City, Mo., Sprint Center
5/24 — Denver, Colo., Pepsi Center
5/27 — Las Vegas, Nev., MGM Grand Garden Arena
6/1 — Los Angeles, Calif., Staples Center
6/3 — Oakland, Calif., Oracle Arena
6/5 — San Jose, Calif., HP Pavilion
6/12 — Anaheim, Calif, Honda Center
6/14 — San Diego, Calif – Viejas Arena
6/16 — Phoenix, Ariz., US Airways Center
6/20 — Dallas, Texas, American Airlines Center
6/22 — San Antonio, Texas, AT&T Center
6/24 — Houston, Texas, Toyota Center
6/26 — New Orleans, La., New Orleans Arena

Postponed dates: 

7/7 — Uncasville, Ct., Mohegan Sun Arena
7/9 — Hampton, Va., Hampton Coliseum
7/11 — Philadelphia, Pa., Wells Fargo Center
7/13 — East Rutherford, N.J., Izod Center
7/15 — Baltimore, Md., 1st Mariner Arena
7/17 — Rochester N.Y., Blue Cross Arena
7/19 — Detroit, Mich., Joe Louis Arena
7/21 — London, Ontario, John Labatt Centre
7/24 — Toledo, Ohio, Huntington Center
7/26 — Grand Rapids, Mich., Van Andel Arena
7/28 — Cleveland, Ohio, Quicken Loans Arena
7/31 — Fort Wayne, Ind., Allen County Memorial Coliseum
8/2 — Columbus, Ohio, Schottenstein Center
8/4 — Knoxville, Tenn., Thompson-Boiling Arena
8/6 — Memphis, Tenn., FedEx Forum
8/8 — Birmingham, Ala., BJCC Arena
8/10 — Greenville, S.C., BI-LO Center
8/12 — Cincinnati, Ohio, US Bank Arena
8/21 — Spokane, Wash., Spokane Arena
8/23 — Portland, Ore., Rose Garden
8/25 — Sacramento, Calif.,Power Balance Pavilion
8/28 — Fresno, Calif., Save Mart Center
8/30 — Reno, Nev., Reno Events Center
9/4 – Salt Lake City, Utah,  EnergySolutions Arena
9/8 — Albuquerque, N.M., Tingley Coliseum
9/11 — El Paso, Texas, Don Haskins Center
9/13 — Austin, Texas, Frank Erwin Center
9/15 — Oklahoma City, Okla., Chesapeake Energy Arena
9/17 — Wichita, Kan., Intrust Bank Arena
9/21 — Moline, Ill., Iwireless Center
9/25 — Milwaukee, Wis., Bradley Center