The cyanobacteria bloom, also known as blue-green algae, can sicken people and animals who come in contact with it.

Part of the Charles River is closed for water activities after toxic algae was spotted in the City of Boston. The algae bloom ...

Boston health officials have detected cyanobacteria in the Charles River, temporarily banning water activities and urging ...

Health officials say there is an elevated count of cyanobacteria, or blue-green algae, in the Charles River this weekend.

A portion of the Charles River is closed due to a toxic algae bloom in the water. Here are the areas to avoid.

An algae bloom has been discovered in a section of the Charles River and people are urged not to swim, boat, or fish in the ...

A bloom of toxic blue-green algae was found in the Charles River near the Harvard Bridge on Thursday, prompting health officials to issue a health advisory urging residents and their pets to avoid the ...

State officials warn people not to have contact with the waters of the Charles River in Boston, and to keep their pets away ...

The city is urging residents to avoid contact with a section of the Muddy River in Fenway after a harmful algae bloom was discovered in the water. Trump says he’ll meet with Putin next Friday in ...

The Charles River Watershed Association says it's the first time a bloom has been noticed in the area since it began monitoring algae in the river.

The Charles River Watershed Association says it's the first time a bloom has been noticed in the area since it began monitoring algae in the river.