GRAFENWÖHR, Germany — Amberg police have questioned a 38-year-old U.S. soldier whom they suspect of flashing young girls in the town and surrounding communities.

In a statement, the German police said officers questioned the man Thursday in connection with a series of incidents involving girls as young as 12.

The first incident happened Dec. 2 in Amberg when a man whistled at a 13-year-old German schoolgirl, then stood in front of her, naked below the waist, police said.

On Jan. 27, a man of the same description approached a 12-year-old girl in Amberg in the same manner, they said.

And on Feb. 18, a man approached a 14-year-old girl in Hahnbach and a 12-year-old girl in Sulzbach-Rosenberg, police reported.

In each case the suspect drove a red truck and used the same tactics, the statement said.

After police notified locals to watched for the vehicle, they were contacted about a similar truck in Amberg on Thursday, according to the statement.

When the police arrived, they found an American inside with a pair of jeans on the floor, the statement said.

A police spokesman said the man, who denied the accusations, was a U.S. soldier and that the case was handed over to military police for investigation.

U.S. Army Europe spokesman Lt. Col. Richard Spiegel did not provide information about the case or the soldier’s name or unit.

“All I can tell you is that we are aware of the investigation and we are cooperating with it,” he said.