BISMARCK, NORTH DAKOTA - A flurry of Facebook check-ins to the Standing Rock Indian Reservation at the epicenter of a protest against the Dakota Access pipeline is at least partially a response to a posting that law enforcement is tracking protesters.

Most people, however, probably aren't actually making the trip to remote North Dakota.

Dakota Pipeline Protesters Demonstrate Through Facebook Check-ins

The check-ins appear to be in reaction to a Facebook post that claims law enforcement is using the social media giant to track protesters.

Dakota Pipeline Protesters Demonstrate Through Facebook Check-ins

The post urges people who support the protest to check into the site to confuse authorities.

Dakota Pipeline Protesters Demonstrate Through Facebook Check-ins

The Morton County Sheriff's Department fired back with a post of its own Monday, calling the claim “absolutely false.”

The main camp supporting the protest says the check-ins brought welcome publicity, but also urged supporters to take “physical action,” as well.

More than 140 people were arrested at the site over the weekend.