About 320,000 pool ladders, imported by Aqua-Leisure Industries, are being recalled.

The company said the ladder's plastic step support clips can be assembled upside down, causing the ladder steps to break under a user’s weight.

Aqua-Leisure said there have been six reported injuries, including a concussion, a broken arm, fractured ribs and a wrist sprain.

The ladders were included with Aqua Leisure Simple-Set inflatable pools that range from 12 feet to 18 feet in diameter.

The white metal arched ladders have two, three or four plastic blue steps on each side of the arch with two blue cross bars just above the top step.

White plastic and metal clips are used to connect the steps to the ladder.

The ladders were sold at discount department and toy stores nationwide from January 2002 through August 2005 for between $90 and $200, depending on the size of the pool.

Consumers should stop using the ladders and contact Aqua-Leisure for a free repair kit, including new assembly instructions and color-coded support clips. Ladders should be re-assembled using the new repair kits.

Consumers can call Aqua-Leisure at (866) 807-3998 or visit the company's Web site.