TULSA, Okla. (AP) — At least 10 men in several states have been charged in a Nigerian romance money laundering scheme that swindled victims out of more than $1.5 million.

U.S. Attorney Trent Shores said during a news conference in Tulsa on Wednesday that many of the victims were seniors, the Tulsa World reported. An Oklahoma resident was among the victims.

“The defendants enriched themselves and their cohorts by preying on vulnerable victims hoping to find love and companionship online,” he said.

Shores said FBI agents arrested seven of the defendants, including five who were arrested in Norma...