UPDATE | Sept. 6, 4:29 p.m.
RTC said all lanes are reopened.
Metro police said they responded to a call of a suspicious circumstance at the intersection around 2:01 p.m., prompting the lane closures.
Investigators said they thoroughly inspected the suspicious device and determined it to be inert and not harmful.
Police did not reveal what the device was.
ORIGINAL ARTICLE
LAS VEGAS (KTNV) — The Las Vegas Metropolitan Police Department said they are investigating a "suspicious item" in the 9700 block of South Maryland Parkway.
RTC said all southbound and eastbound lanes at the Maryland Parkway and Silverado Ranch Boulevard intersection are closed and to expect heavy delays.
Authorities said to avoid the area.
This is an ongoing investigation. More information will be released as it is made available.