Protesters upset with Wells Fargo's financial backing of oil pipeline projects chained themselves to bank's doors in downtown Duluth.

The protest Friday involving 20 to 30 people began at around 9 a.m. Wells Fargo kept the internal entrance to the lobby closed while Duluth police responded to the bank.

One of the demonstrators, Ernesto Burbank, says they are trying to send a message that Wells Fargo and other banks are invested in oil companies that pollute waterways and desecrate the land.

There was no immediate word on any arrests.