The Emergency Management Office received a message from the 112 County Center on the possible gas leak in the Sofra restaurant's sanitary ware, located within the Green Gold Center, where five employees were asked for medical help, the office said.

On the ground were the Police Administration of Zagreb, the Institute of Emergency Medicine of the City of Zagreb, the Croatian Institute of Toxicology and Antidoping, the Education Institute for Public Health of the City of Zagreb " Andrija Štampar ", the Public Fire Department of the City of Zagreb and the coordination of all the services was worked by the Office of Emergency Management in cooperation with the County 112 Center.

The City of Zagreb gas meters spent measurements where no elevated carbon monoxide concentration was found and there was no gas leak from the city grid. Educational Institute of Public Health of the City of Zagreb "dr. Andrija Štampar "conducted the air sampling and after the analysis of the Police Administration, Zagreb will start with an eyewitness.