The Westchester County Department of Health released a Hudson River Beach and Boater Advisory Thursday advising swimmers and boaters to avoid the river from Peekskill to Yonkers until further notice.

Health officials say it is all due to a sewer main break that happened in Ossining.

They say the break led to probable contamination in the water.

Croton Point Park Beach and Philipse Manor Beach are also closed until further notice.