(AP) — Nebraska authorities are reminding boaters and tubers to carry a cell phone in a waterproof container after rescuing a woman from a sandbar in the Elkhorn River on Sunday.

Waterloo Fire Chief Travis Harlow said Sunday’s rescue took longer than it should have because the woman didn’t have a cell phone.

Harlow says the woman wasn’t able to communicate with authorities, so rescuers had to contact hundreds of tubers to find her.

The woman told authorities that she either fell or got pushed off her tube before winding up on the sandbar. She sustained cuts and scrapes, but should be OK.