FERGUSON, Mo. (AP) — A fourth night of protests in Ferguson, Missouri has resulted in nearly two dozen arrests.

The crowds have been marking the anniversary of the fatal shooting of 18-year-old Michael Brown.

Sunday night, the demonstrations were interrupted by gunfire and a police shooting that left an 18-year-old critically injured.

But there were no shots fired during the gathering that stretched into early this morning. Police say arrests overnight came as some protesters threw bottles, frozen water bottles and rocks at officers.

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