A highway blockade in Caledonia remained in place for much of Monday after two separate groups took to the streets to make their voices heard by stopping traffic.

The blockade began as an aboriginal protest in the morning, say the Ontario Provincial Police. Early reports say the protest was sparked by the arrest of a number of Six Nations youth in Brantford early today.

Shortly after the demonstration had ended, some other Caledonia residents set up their own blockade in the same spot. The second group says they're upset by the actions of aboriginal protestors.

The secondary protest ended in the early evening.

OPP Sgt. Dave Rektor says relations between the opposing groups were made worse by the secondary protest.

"The people that are trying to pursue what they feel is right for them -- they're not looking at what is right for everybody," he says.

Police released a statement at about 5:20 p.m. saying the town's Highway 6 bypass had been reopened between Greens Road and Argyle Street. It said traffic on Argyle Street South in Caledonia continues to be re-routed due to protests.

Caledonia is located about 30 kilometres south of Hamilton.

Members of the Six Nations community have staged routine protests in recent years over land claims issues.