UVALDE, Texas — Two families are mourning the loss of newlyweds tragically killed when their helicopter crashed in Uvalde.

Investigators are looking into what went wrong and caused the crash. The National Transportation and Safety Board held a joint press conference with Texas Parks and Wildlife Monday to give an update on the investigation into the crash. The NTSB is still working on a preliminary report, which can take an average of two weeks to prepare.

On Saturday, newlyweds Will Byler and Bailee Ackermann Byler were killed in a helicopter crash after leaving the Byler family ranch. The cause of the crash hasn’t been determined. According to officials,  the helicopter crashed five to ten miles from the site of the ceremony on a private ranch not belonging to the family, four miles off State Road 55.

The couple was en route to San Antonio to celebrate their honeymoon.