New remains discovered near Fort Hood in Texas may potentially be linked to the case of Private First Class Vanessa Guillen, a soldier who went missing in April.

The remains and several items were uncovered Saturday by around 30 volunteers from Texas EquuSearch and were found near the area where the body of another missing soldier, Gregory Wedel-Morales, was found on June 19 in Coryell County.

“We know it's a process of elimination so we know where she's not and we keep moving forward so we can hopefully look forward to the day we can say we know where she is,” EquuSearch founder Tim Miller said in a statement.

Guillen, 20, was last seen in a parking lot near her squadron headquarters at Fort Hood on April 22. Her keys, wallet, and ID were later found in an armory where she had been working earlier in the day.

On June 23, investigators handling the case told Guillen’s family that foul play is suspected in her disappearance. Guillen also reportedly told her family that she had been experiencing sexual harassment and felt unsafe shortly before she went missing.

Fort Hood officially launched an investigation into the sergeant who had faced accusations from Guillen. Natalie Khawam, the attorney representing Guillen’s family, has also said that Guillen at various times mentioned superiors walking in on her taking a shower and verbally harassed her in Spanish.

The remains were turned over to Dallas’ Southwestern Institute of Forensic Science for examination. The items that volunteers also recovered were reportedly found near a river, but officials did not provide specifics about where they were discovered.

Fort Hood The main gate at the U.S. Army post at Fort Hood, Texas, is pictured in this undated photograph, obtained on Nov. 5, 2009. Photo: REUTERS/III Corps Public Affairs/U.S. Army/Handout