UPDATE: The I-15 reopened around 3:40 p.m. Sunday. Drivers are still advised to use caution as traffic moves slowly.

LAS VEGAS (KLAS) — The I-15 near the California-Nevada border was closed due to a “major dust storm,” according to RTC Southern Nevada.

The National Weather Service extended that dust storm warning on Sunday to southwest Clark County including I-15 near Primm until 4:30 p.m. NWS said visibility will be near zero at times.

The I-15 southbound was closed at Primm and major backups could be seen Sunday afternoon.

The I-15 reopened around 3:40 p.m., according to RTC.

Harry Reid airport also saw delays Sunday due to strong winds.

Drivers are advised to use extreme caution while traveling along the interstate Sunday.