Two environmental activists were arrested in East Texas Tuesday as protesters there continue their push to block construction of the Keystone XL oil pipeline. Activists with the Tar Sands Blockade are claiming to have thwarted construction efforts outside Winnsboro, Texas, for most of the day after two people locked themselves to a backhoe. The pair were reportedly pepper-sprayed, tasered and put in chokeholds by police before being arrested. Meanwhile, eight other activists remain aloft in a “tree village” in a bid to block tree-clearing equipment that’s making way for the pipeline’s southern leg.