Two 40-year-old Meridian men were sent to the hospital following a rollover crash on Swan Falls Road early Tuesday morning.

Ada County Sheriff’s officials say the crash occurred just after 5 a.m. The driver and a passenger were thrown from the car during the crash, which happened near the end of the road, just up the hill from the Swan Falls Dam.

The men, who had been fishing by the dam early Tuesday morning, were driving north on Swan Falls Road after getting up the hill and were going around a tight turn when the driver lost control. The car slid for several feet off the side of the road before flipping over at least twice before stopping.

Neither man was wearing a seat belt, deputies say. The men were not discovered until around 7 a.m. because of the remote location of the crash and time of the morning when it happened.

Investigators are still trying to figure out what caused the driver to lose control but do say it appears as if alcohol use may have been a factor. Both men sustained serious injuries, but they are not suspected to be life-threatening, officials said Tuesday afternoon.

The men have not yet been publicly identified. Deputies had not filed any charges in connection with the crash as of 1:30 p.m., and charges may not be filed for several weeks until evidence tests, including toxicology, are completed, according to reports.