WOODBURY - ? Police today released pictures of the missing Indiana University college student just hours before she vanished.The pictures include 20-year-old Lauren Spierer, of Westchester, leaving her apartment complex and a car seen circling in her neighborhood where she last seen.Authorities are working with the FBI in efforts to enhance a surveillance video, zeroing in on the car passing by during the timeframe Spierer vanished.Other technologies being used include sonar equipment and drone airplanes to scour areas outside of the college-town where the fashion major lived.Searching in the meantime may be stalled because of severe weather, but officials say the crew will continue looking until safety becomes an issue.Police say her boyfriend, Jesse Wolff, of Port Washington, is a person of interest in the case.

PHOTOS: Surveillance camera photos in Lauren Spirerer caseCops: LI boyfriend a person of interest in missing student case