MOSCOW, April 2./TASS/. At least nine people, including foreign nationals, were injured in an explosion in the Burger King fast-food restaurant in central Yerevan, Armenia, on Monday, the press service of the country’s Emergencies Ministry reports.

It said an emergency call about an explosion came at 20:44 local time (19:44 Moscow time). Four fire fighting vehicles, a team of the Ministry for Emergency Situations and a quick-reaction team of the National Crisis Management Center were rushed to the site.

Early reports say an oxygen cylinder exploded in the restaurant’s kitchen. Nine people were injured, including foreign nationals. They were all hospitalized.

"According to preliminary data, there are Russian and Iranian nationals among the injured," Armenian Foreign Ministry Spokesman Tigran Balayan told TASS.

The thoroughfare in central Yerevan where the fast-food restaurant is located, is a favorite place for a stroll among the local residents and tourists, boasting a host of cafes and restaurants.