Authorities have released a sketch of a potential witness in the disappearance of 5-year-old Dulce Maria Alavez, who vanished from a New Jersey playground exactly a month ago.

A witness recently came forward to provide a description of a man who was in Bridgeton City Park on Sept. 16 when Dulce suddenly went missing, the Cumberland County Prosecutor’s Office said in a Tuesday statement.

The witness described the man as Hispanic, about 5 feet 7, with a slender build and between 30 and 35 years old.

He wore a white T-shirt, blue jeans and a white baseball cap, and was last seen with one or two children under the age of 5, the witness told authorities.

The description did not come from the initial child witness who gave authorities the information that led to the Amber Alert, prosecutors said.

The man depicted in the sketch is not considered a suspect or a person of interest in the investigation, Cumberland County Prosecutor Jennifer Webb-McRae told CBS Philadelphia.

“We are asking this person (or anyone who may recognize him) to come forward as investigators wish to speak with him as it is believed that he may have information that is helpful in determining the circumstances that led to Dulce’s disappearance,” the prosecutor’s statement said.

Investigators believe Dulce was abducted from the 1,000-acre park as she played with her 3-year-old brother, Manuel, at a playground while their mother waited in a car.

Moments later, Manuel said his sister was gone, pointing toward several storage buildings nearby.

Since then, over 1,000 tips were received and processed, and more than 500 vehicles have been identified and investigated, according to McRae. Additionally, more than 50 different types of legal process have been served, including court orders and subpoenas.

The reward for any information leading to Dulce’s return jumped to $52,000 last week.