Two animal advocates said a lack of seizure order is keeping several dozen malnourished horses in an abusive "rescue" organization in the East side of El Paso county.

Thursday, the El Paso County Sheriff's Office released information that they are currently working with the Texas Animal Health Commission, investigating the possible report of animal abuse involving several horses.

A hold order was placed on the horses at the ranch where they are currently being kept, Sheriff's officials said.

A local veterinarian, assisting with the investigation, indicated that the horses he observed were in relatively good condition but that they did appear thin. He also said that the horses did have water, molasses, salt blocks and minerals.

However, two animal advocates, Diane Avery and Marilie Sage, said that veterinarian could not have had a full picture of the conditions of all horses on the property.

Exclusive video of a helicopter rider obtained by KFOX14 shows several carcasses littering the property, along with malnourished horses scattered, attempting to graze. Avery and Sage said many of the carcasses show apparent signs of distress prior to their death.

"I would assume that if [the vet] said these horses did not look that bad, then they were not given a full picture of the condition of these horses," Avery said on Thursday.

As of early Sunday evening, a seizure warrant has still not been issued to remove the horses, Avery said.

Avery and Sage said they have arranged a safe place for the horses to go once a warrant is issued. Avery, along with a viewer who wishes to remain anonymous, also told KFOX14 people have not been allowed to bring feed to the property to assist in the care of the horses.

As of Thursday evening, the El Paso Sheriff's Office said arrangements were currently being made to fly over the ranch with a veterinarian to look at approximately 50 additional horses, most likely the ones shown in our KFOX14 video.

The Sheriff's Office said deputies are taking this case seriously and is also receiving assistance from several local animal rescue groups, the National Humane Society, the El Paso County Attorney's Office and Constable Rheda A. Sommers of Precinct 7.