Lost Great Pyrenees Mix - Help Find Him!

White Great Pyrenees Mix, male, three years old. He and his brother got through an open gate at our home yesterday morning at 9:00 am. There is a wooded area behind our home as well as across the street. The bolted quickly and we immediately began the search. After twelve hours yesterday we've had no sightings or leads. We have posted everywhere, notified the police, and the animal shelters. They both have microchips and if found can be taken to any shelter or vet and we will be notified. We will focus on scouring Percy Warner Park and all surrounding large wooded areas. Thank you from the bottom of our hearts for your help and prayers.