It differed from phone to phone, but sometime between late Monday and early Tuesday many mobile phones across Southern California received an Amber Alert related to two missing children in San Diego.

James Lee DiMaggio is suspected of killing Christina Anderson, 44, of Lakeside and kidnapping one or both of her children: Hannah Anderson, 16, and Ethan Anderson, 8.

Amber Alert Q&A: Why it happens, how to turn it off

Christina Anderson's body was found Sunday night in the burning rubble of a house in the rural community of Boulevard in eastern San Diego County, authorities said.

The two children were likely abducted about 5 p.m. on Saturday, authorities said.