Ministry of Environment (Miambiente)  staff moved along the Matasnillo River on Monday, April 27  to check the source of a large black patch that appeared on the Bay of Panama alongside the Cinta Costera.

 Local residents raised the alert on social networks on Sunday afternoon, but staff from Miambciente ‘s Coastal and Seas Directorate, who went to the site, reported that by five in the afternoon the stain was gone.