Edinburg police searching by land, water and air for a 90-year-old man who has been missing since Saturday.
Authorities biggest concern is not only Ernesto Mendiola Salinas TM age and health condition, but the 100 degree temperatures outdoors. Police have stepped up search efforts.
They called in the Mission Dive Team to search nearby canals.
Although their initial search was in a three-mile radius of Salinas's home which is located at the 800 block of Mahl, police and fire teams expanded their search five to six miles south of that area after a resident spotted Salinas walking Sunday afternoon.
Salinas's son was the last to see him.
He told police he saw him Saturday around 11 p.m.
A Silver Alert was issued for Salinas on Monday.
Police said Salinas has Alzheimer TMs and heart problems, but family members said he is active at the age of 90-years-old.
Police extended the Silver Alert for Salinas an additional 24 hours as they continue to search for him.
Salinas was last seen wearing a black and white shirt and black pants.