The Latest: Police: About 20 fires set at Dakota Access camp

BISMARCK, N.D. (AP) — The Latest on plans to close a protest encampment near the Dakota Access pipeline construction site in North Dakota (all times local):
6 p.m.
Authorities in North Dakota say Dakota Access pipeline protesters set about 20 fires on the day their longstanding camp was scheduled for closure.
They say at least two explosions resulted. A 7-year-old boy and a 17-year-old girl were taken by ambulance to a Bismarck hospital to be treated for burns.
Police say they arrested abo