UPDATE - 1:15 p.m.
Police said the suspect has been taken into custody. However, they're still advising the public to avoid the area as they investigate.
UPDATE - 1:00 p.m.
Law enforcement officers are now conducting evacuations in the area as a precaution.
They add that Flamingo Road and University Center Drive is currently closed. Police are continuing to advise the public to avoid the scene.
PREVIOUS - 12:30 p.m.
Las Vegas police, SWAT, and negotiators are on the scene of a barricade on Tuesday afternoon.
This is in the 4000 block of University Center Drive, which is near East Flamingo Avenue.
According to police, a wanted suspect is refusing to exit a structure at that location.
Investigators are asking the public to avoid the area.
No further details have been released, as of 12:35 p.m.