Pipeline protesters chain selves to bank doors in Duluth, Minn.

DULUTH, Minn. (AP) -- 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. 
 
WDIO-TV reports three protesters who chained themselves to doors face possible misdemeanor charges of trespassing and obstructing legal process. They were booked into the St. Louis County Jail on 12-hour holds.