A warning from protesters that an emergency valve would be opened led Enbridge Energy to shut down its Line 5 Tuesday.
That pipeline section moves about 23 million gallons of oil and natural gas liquids each day between Superior and Sarnia, Ontario – passing through portions of northern Michigan and Wisconsin.
The protesters were inside a fenced area in Tuscola County in Michigan’s “thumb.”
It isn’t known if protesters followed through on the threat, but there have been no reports of a discharge.
