Wichita ? Four people were arrested early Saturday after possible human remains were discovered in a rural area outside Wichita, authorities said.

A man was booked into the Sedgwick County jail on two counts of first-degree murder, while another man and two women were booked on suspicion of aiding in the crime. The names of the suspects weren’t released because they hadn’t been charged, said Terri Moses, deputy chief of the Wichita Police Department’s investigations division.

The remains were discovered Friday during an investigation into the case of two missing brothers and taken to the Sedgwick County Regional Forensic Science Center, Moses said.

The brothers, identified by relatives as Oscar Ramirez, 27, and Nicolas Ramirez, 22, lived in the Wichita area. They were reported missing a month ago, Moses said.

Relatives told The Wichita Eagle that authorities recovered the bodies of three people.

The remains were found in an unspecified rural area about 45 minutes from Wichita.

Cowley County Sheriff Bob Odell said Wichita Police contacted his department and asked for assistance in a search for two bodies.

Investigators from Sedgwick and Cowley counties and the Kansas Bureau of Investigation spent much of Friday searching an area Odell would describe only as being in the “northeast part” of the county.

Cowley County Coroner Dr. Anthony Johnstone said he was told the remains may have been “incinerated.”

But Moses said the department is “not releasing anything about the status of the bodies.”

Cowley County Undersheriff Don Read said it was believed the victims had been killed elsewhere and dumped in Cowley County.