MIAMI (CBSMiami) – Officials are investigating after a white substance washed up on Fort Lauderdale Beach between lifeguard stations 1-10.

The US Coast Guard, local fire rescue and lifeguards are working to clean the beach near Las Olas Boulevard and A1A and to determine what the unknown substance is.

Officials urged beachgoers to use caution.

This is a developing story and will be updated as soon as more details become available.