SAN DIEGO–sewage-contaminated runoff in the Tijuana River has forced the closure of the Coronado shoreline, the County of San Diego Department of Environmental Health reports.

The sewage also has been entering the Tijuana Estuary from the International Border north to the Tijuana Slough, Imperial Beach and Silver Strand shorelines. All of those shorelines are closed.

Signs warning of sewage-contaminated water will remain in place until sampling results indicate the ocean water meets state health standards.