TOLEDO, Ohio (AP) -- Ohio Gov. John Kasich says all of the state's agencies are working to bring water and other supplies to areas around Toledo where some 400,000 are being told not to drink from the city's water system.
Kasich tells The Associated Press it's too early to say how long the water advisory will last and what triggered it.
Ohio officials are awaiting the results of more tests on the water that could determine how much longer residents in and around the state's fourth-largest city are without water.
Toledo officials issued the warning early Saturday after tests revealed the presence of a toxin possibly from algae on Lake Erie.
Ohio's EPA director says the agency is trying to figure out what caused a sudden spike in the toxins.