A Redondo Beach-bound boat that went missing Sunday night, two hours after taking off from Catalina Island, was found by a good Samaritan Monday morning.

The man and two women on board the 17-foot Chris-Craft were uninjured. A good Samaritan boater discovered the disabled vessel about 8:45 a.m. about 15 miles northeast of Avalon and was towing it. The U.S. Coast Guard arrived to take over, towing the boat back to the Cabrillo Marina at San Pedro, Coast Guard Lt. Jon McCormick said.

The passengers called 9-1-1 at about 10 p.m. Sunday to report their engine died, but their cellphone went dead, McCormick said. The boat also had no radio.

The boat’s last known position was off the Point Vicente Lighthouse on the Palos Verdes Peninsula. A Coast Guard boat and helicopter had searched overnight and again early this morning off the Peninsula.

“We were searching basically where they were found but at night it’s hard,” McCormick said. “They didn’t have any visual distress signals.”

The boaters also had nothing visual — such as a flashlight or flare gun — for searchers to spot, McCormick said.

“Luckily, they are safe,” McCormick said. “I think the takeaway is to at least have a radio.”

McCormick suggested boaters purchase an Emergency Position Indicating Radio Beacon, a small device that, when turned on in a crisis, sends a satellite signal to rescuers.

“It tells us exactly where the boat is,” McCormick said. “You can get them at marine supply stores for less than $300. That would have made it a slam dunk. We highly recommend that to every recreational boat.”

McCormick said it is safe to travel in the dark “as long as you have the proper safety equipment and the proper signaling devices.”