STOCKHOLM (AP) — Belarus’ top security agency — the KGB — has summoned a Swedish advertising team for questioning after the group air-dropped hundreds of parachute-wearing teddy bears that carried pro-human rights messages onto the soil of the authoritarian ex-Soviet state. The agency threatens the Swedes with fines or even jail time if they don’t show up in 10 days.

The July 4 teddy bear drop by Studio Total infuriated Belarus’ autocratic President Alexander Lukashenko, who fired two generals over it. It also may have added stress to already deteriorating diplomatic relations between Stockholm and Minsk. Earlier this month, Belarus effectively expelled Sweden’s ambassador and ordered the Nordic state to close its embassy.