Russian police say they are looking for the head of the company that manages a vegetable warehouse in Moscow's troubled Biryulyovo district.
Russia's Investigative Committee said on October 16 that Aliaskhab Gadzhiev has been added to its wanted list after investigations revealed that his company had employed scores of illegal immigrants.
Gadzhiev's associate, Magomed Churilov, and the chief of a security firm that guarded the warehouse, Viktor Kotelevsky, have already been arrested.
The investigations into the warehouse activities were launched on October 14, a day after thousands of antimigrant protesters stormed it and clashed with police.
That incident followed the killing of a young Russian man, believed to have been by a migrant from the Caucasus.
On October 15, police arrested an Azerbaijani national, Orkhan Zeynalov, for the killing.
A court in Moscow has closed the vegetable warehouse in Biryulyovo for 90 days.
Based on reporting by Interfax and RIA Novosti