As coronavirus cases ramp up in Arizona, New Mexico and Utah, the Navajo Department of Health is warning of possible community spread.
Community spread occurs when a disease is common enough that people might not know who they caught it from.
"It's getting very out of control, and we need to be able to keep everybody isolated so that it doesn't spread any more," said President Jonathan Nez.
The Navajo Nation's tally of 130 new cases raises the total above 11,600, with Chinle, Gallup and Shiprock service units accounting for more than half.
Nez has called for a halt to travel and family gatherings.
"We have contact tracers that are saying that our relatives are coming back home, bringing the virus home, and then we have family gatherings, social gatherings, and then the virus spreads."
The Navajo Nation began a weekend lockdown Friday that will continue until early Monday.
A curfew remains in effect from 9 p.m. to 5 a.m. weekdays.
