 A union representing 300 park workers called a strike that ends in a few days. The union and the Minneapolis Park and Recreation Board are at odds over the size of wage increases. They also disagree over a move by the board to keep striking workers from returning to their jobs until a contract is ratified. Citing the strike, the Minnesota Orchestra canceled a free concert for tonight at the Lake Harriet Band Show. Coming up next, business news. It's 5.51. Music