Three children, a man and a pregnant woman died in a multi-car crash in Lodi, CA, on Tuesday afternoon.

According to some witnesses, a driver on a cell phone sped through an intersection causing the crash and killing Irving Miranda, 12; Jose Miranda, 7; Stephanie Miranda, 5; Luis Miranda, 30; Vivian Rodriguez, 31, and her unborn baby.

"We don't know exactly what happened. It's a very complex scene," said Lodi police Officer Eric Bradley.

Police said six cars were involved in the accident while two other victims still in critical condition and a dozen resulted injured.