UPDATE
Traffic cameras show that police activity has cleared and traffic is flowing normally in the area.
ORIGINAL STORY
Traffic cameras show police activity on a median near Harry Reid International Airport by South Maryland Parkway and East Russell Road.
LVMPD shared that "units from Major Violators were requested to assist with stopping and detaining subjects related to an ongoing investigation," who are now being questioned by investigators.

RTC
Motorists can expect delays for the next hour or so as eastbound lanes remain affected, according to LVPMD.
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Man shot by girlfriend’s brother during fight in southwest Las Vegas, police say
Las Vegas police say a man is cooperating with investigators after shooting his sister’s boyfriend inside a southwest valley home early Sunday morning.
Suspect on the run after shooting man in the head in east valley, says LVMPD
It happened in the 4800 block of Boulder Highway, near Flamingo Road and Nellis Boulevard, according to the Las Vegas Metropolitan Police Department.
Driver arrested after crash kills pedestrian near Chinatown intersection
It happened around 9:30 p.m. near the intersection of South Decatur Boulevard and Spring Mountain Road, according to the Las Vegas Metropolitan Police Department.
SCENE VIDEO: Driver arrested after crash kills pedestrian near Chinatown intersection