BATON ROUGE, La. -- An East Baton Rouge sheriff's deputy who was critically injured during July's ambush shooting will be heading to rehab facility in Texas.

Deputy Nick Tullier has been accepted at the TIRR rehab facility in Houston, according to his father.

James Tullier said they heard back late Monday evening from TIRR saying they would happily take Nick. He added Nick will definitely be going to TIRR, but they do not have a specific date yet.

Deputy Tullier, 41, was one of six officers who were shot during an ambush shooting on Sunday, July 17. He was transported to Our Lady of the Lake Hospital, which is where he has remained in critical condition.

Several surgeries have been performed in an attempt to repair the damage caused by three bullets. Deputy Tullier was struck in the abdominal region, upper arm and in the head.

Since then, Nick has been in the hospital as family, friends and supporters hope and pray for him.

Nick's father said the prayers keep coming from across the world. Nick has received letters from complete strangers in California, Michigan and there's even one from England stamped "Royal Mail."

The Tullier family asked everyone to continue to Nick in your prayers because they are working. Nick is defying every doctor's prognosis, and now he will be heading to rehab.

For more on his progress, check Nick Tullier Strong page on Facebook where his father posts regular updates.