More than a week after 3-year-old Sherin Mathews went missing in Texas, the police are still searching for her.

The Richardson police department conducted multiple searches in fields, creeks and wooded areas on Tuesday. It was during the course of the investigation that they developed information that has led them to search in more specific areas, the police said in a statement.

"These searches were done with numerous officers and the assistance of a law enforcement drone task force and K9's. Detectives will evaluate the results of today's efforts while the investigation continues," the police said.

It was on October 7 that Sherin was reported missing. Her father Wesley Mathews - a native of Kerala - told police that he sent her out of home at 3 am as punishment for not drinking milk. He told police that Sherin disappeared soon after.

While reports state that the Mathews' family has refused to cooperate with the investigating agencies, a police official told WFAA that they were hopeful to find the child alive.

"We're always hopeful that we can find her alive. But time is our enemy," an officer was quoted as saying.

The report stated that the police have found several "articles" from their search operations, but that "it's not clear if they are actually evidence at this time."

According to the police, the detectives are working through the video footage collected from the neighbourhood. In an earlier update, the police department had said:

"The process of reviewing evidence both digital and physical, as well as witness statements is a time consuming process and we ask for patience as we make progress."