00:27 - Source: CNN
Video shows walls begin to crumble in collapse
(CNN) —  

A building collapsed Saturday afternoon in St. Petersburg, Russia, a spokesman for the Russian Emergency Ministry told CNN.

The spokesman said earlier 86 people had been evacuated and there were 24 rescue unit teams working in the area. The ministry said later Saturday that rescue operations with dogs were complete.

“Nobody was found under the rubble and we don’t have any reports of missing relatives,” a spokesperson said.

Three floors of the building collapsed, the ministry said.

The spokesman said that the block belongs to the St. Petersburg Research University of Information Technologies, Mechanics and Optics.

The press office for the university told CNN there had been no notification of casualties and they were not able to make assumptions about the cause of the collapse.

A criminal case has been opened to examine safety violations during construction of the building, state-run news agency RIA Novosti reported, quoting the Russian Emergency Ministry.

The ministry initially said the collapse was at the St. Petersburg University of Low Temperatures and Food Technology.

CNN’s Rob Picheta reported from London, and Olga Pavlova reported from Moscow. CNN’s Claudia Rebaza and Darya Tarasova contributed to this report.