NASA is again asking citizens and officials for help in finding material from the Space Shuttle Columbia in particular locations, this time in Arizona, Nevada, New Mexico, and Utah.

The material would have fallen from the shuttle as it was reentering Earths atmosphere along a line stretching generally from San Francisco to Lafayette, La. The space agency asked late Wednesday that people be on the lookout for possible Columbia debris 60 miles north or south of the reentry track, particularly in the following counties:

• Arizona: Apache, Navajo, Coconino, Mohave;

• Nevada: Lincoln;

• New Mexico: San Juan, Kane, Beaver; and

• Utah: Washington, Iron, San Juan, Garfield.

All debris is U.S. Government property, the space agency warned, and is critical to the investigation of the mishap. Debris from the accident should be left in place and reported to government authorities. Unauthorized persons found in possession of accident debris will be prosecuted to the full extent of the law, the statement said.