Baghdad, Iraq ? U.N. inspectors swept Tuesday through Baghdad University, collecting names of scientists and disrupting classes to gain information about their research.

It was the inspectors’ second visit in as many days to the school, as they comb the country under a U.N. mandate to verify whether Iraq has eliminated its weapons of mass destruction.

The Institute for Biotechnology and Genetic Engineering was listed as a relevant site in Iraq’s weapons declaration. Inspectors fanned out through the Department of Biotechnology on Tuesday. As usual, reporters were not permitted to follow.