Three more US Secret Service employees resign over Columbia prostitute scandal

Three more US Secret Service employees are resigning over a scandal in Colombia involving prostitutes, according to the agency.

12 members of the Secret Service have been implicated in the incident, which involved 21 women being brought back to a beachfront hotel ahead of the Summit of the Americas last weekend.

One Secret Service employee was cleared of "serious misconduct" and will face administrative action, the agency said.