Authorities across the Midwest were investigating reports Thursday of a brief, bright light streaking across the early morning sky. The Omaha World-Herald and Associated Press report the quick-hit light show around 1:30-a.m. Thursday was seen in western Iowa and eastern Nebraska, including the Omaha area and around Columbus and Waverly, NE.

The streaking light reportedly was seen from parts of Kansas and points north to locations east of the Omaha area as far away as Illinois. No explanation was immediately forthcoming.

Tuesday night, the body of a Russian rocket that burned up as it entered the Earth’s atmosphere set off a wave of excitement on social media and fueled speculation over what caused the flash of light in the western U.S.

U.S. Strategic Command spokeswoman Julie Ziegenhorn said the fireball that seen over Arizona, Nevada and California was an SL-4 rocket body booster from Russia that launched Monday.