When he refused, he was detainedovernight and, according toDudukina, beaten while in custody; Voronezhpolicesay an investigation into the allegation is under way.
In January, US troops detained him overnight and searched his flat before releasing him with an apology, his brother, Dargham, told the Associated Press.
Russia's Federal Security Service (FSB) said it detained the US diplomat on Monday evening and held him overnight before handing him over to US authorities.