FOXBOROUGH, Mass. (AP) — Hundreds of first responders plan to sweat it out this weekend in a workout challenge at Gillette Stadium to raise money for The One Fund.

Organizers say participants will include many of the police officers, firefighters, nurses and paramedics who responded to the Boston Marathon bombings.

The One Fund is the primary victims' compensation fund to aid victims of the attack.

The Metropolitan Law Enforcement Council says the event will last 26 hours and teams will do exercises at 26 workout stations in and around the stadium.

The endurance event will kick off Saturday afternoon and finish Sunday.