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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Driver arrested after hit-and-run, first traffic fatality for LVMPD this year
It happened around 1:03 a.m. near the Welcome to Fabulous Las Vegas sign, on South Las Vegas Boulevard near East Russel Road.
Police: Suspect arrested for burgling businesses across the Las Vegas Valley
Las Vegas police are announcing the arrest of a 27-year-old man in connection with a series of business burglaries throughout the valley on Dec. 21 and 23.
Developing: Henderson police responding to barricade near St. Rose Parkway
Details are limited, but Henderson Police have confirmed the barricade is in the area of Gillespie Street and Bruner Avenue, near St. Rose Parkway and S Las Vegas Boulevard.
Teen arrested, charged with open murder in Las Vegas street takeover shooting
A 19-year-old suspect has been arrested and charged with open murder in connection with a fatal shooting that happened during a street takeover in November.