MILAN -- Lance Armstrong's RadioShack teammate Yaroslav Popovych has had his house in Italy raided by police as part of a doping investigation.

Italian media reported that police and custom officials raided the house in Tuscany on Thursday and that computers and mobile phones were confiscated, along with unspecified substances.

Gazzetta dello Sport reported that the search warrant was issued by public prosecutor Bendetto Roberti, who is leading several doping investigations in Italy.

Popovych recently testified in front of a grand jury in Los Angeles as part of an ongoing American investigation into doping in cycling.

Popovych rode with Armstrong for the Discovery Channel team in 2005, Astana in 2009 and RadioShack this year.