Texas officials say they are searching for a teenage girl who authorities believe was abducted after her father was killed.
Police say 13-year-old Adriana Coronado was last seen Saturday in Katy, Texas.
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Her father, Cesar Coronado, was discovered lying near a ditch Sunday. Officials say his body had been badly burned, and gunshots may have been involved in his death.
"She certainly is in grave danger. We are needing the public's assistance very much so. We want to confirm her whereabouts and welfare," said Walker County Sheriff Clint McRae.
See photos of Coronado and more on the case:
Amber Alert issued for Adriana Coronado who went missing after dad's death, Texas
An Amber Alert was issued for Adriana Coronado after her father was found dead. (Photo via Walker County Police)
#AMBERALERT for 13yo Adriana Coronado. May be with suspect last seen in Katy. Call Walker Co. Sheriff 936-435-2400. https://t.co/BR3GqAQO47
Texas: Amber Alert Issued For 14-Year-Old Girl, Adriana Coronado After Her Father Is... https://t.co/i6y9dqXjFO https://t.co/jEtlHbqlTP
RT #AdrianaCoronado age 13 #AmberAlert discovered #missing after dad found murdered #Katy #Texas #TX #FindAdriana https://t.co/KvL9wCUJhz
AMBER ALERT CONTINUES: initially issued 03/14/16 for Adriana Coronado from Katy, TX https://t.co/jd5rOMwAQJ
#MISSING Call 936-435-2400 if you know where Adriana Coronado may be. Police say she is in "grave danger" @KPRC2 https://t.co/0Hsdl7WiXX
HAVE YOU SEEN THIS GIRL? Adriana Coronado is MISSING. Last seen with her dad, who has now been found dead @KPRC2 https://t.co/UwGOVerxrX
New details in the case of missing teen Adriana Coronado: https://t.co/1QXNiyXf1r #kprc2 #amberalert https://t.co/IDzlvphxb2
#BREAKING - Walker Co Sheriff just released this info about the #AmberAlert issued for Adriana Coronado #KHOU11 https://t.co/8XYoEBmCRf
Authorities say Adriana might have been with her father at the time of his death. They believe she may be in the Houston area and are asking for the public's help to locate her.
The girl's mother told KPRC she is in Mexico to undergo surgery, and she last spoke to Adriana and her father on the phone Friday evening. The FBI is assisting in the search.