Police in riot gear, supported by an armoured SWAT vehicle and a helicopter overhead, repeatedly ordered a crowd to disperse in Ferguson, Missouri.
They then fired a volley of tear gas just after 11pm (5am UK time), sending the crowd fleeing, it was reported.
More top news
The Gallagher brothers have had a turbulent relationship since Oasis fell apart in 2009.
Choir wins public vote, while judges pick dancers ahead of 12-year-old singer-songwriter Henry Gallagher.
The hunt for murder suspect Jed Allen has ended after police found his body two days after discovering his mother, stepdad and sister dead.