MIAMI -

Police are investigating a bizarre robbery and kidnapping that happened in Miami-Dade County on Tuesday night.

Police said it all started just after 11 p.m., when four men in ski masks ambushed a couple sitting in a pickup truck at 95 E. 43rd St. in Hialeah.

The robbers forced the man into a waiting vehicle, and two of the robbers got into the pickup truck with the woman, Miami police said. The masked men used flex cuffs to bind the man's and the woman's wrists and drove them to the man's house on Northwest 14th Street in Miami, according to investigators.

When they arrived at the house, police said they found the man's wife, his mother and two children in the home.

Police said the robbers tied up the whole family, beat up the man, roughed up his wife and then took jewelry and money from the home. The men took off with thousands of dollars in cash and jewelry, Miami police said.

Before leaving, the robbers brought the man's girlfriend into the home and introduced her to his wife, according to investigators. The robbers then left them all together in the house and took off.

Miami police said the robbers were in their mid-20s to early 30s. Police have recovered the victim's vehicle.

Anyone with information is asked to call Miami-Dade Crime Stoppers at 305-471-TIPS (8477).