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.
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A doctor who lied and recorded a lower temperature for Ebola nurse Pauline Cafferkey on her return to the UK has been suspended for a month.
Emergency services were alerted to the crash at 3.50pm on Thursday, Sussex Police said.
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