• Lina Khil was reported missing on Dec. 20
  • She was wearing a black jacket, red dress and black shoes
  • The police have issued multiple Amber Alerts and said she could be in "grave danger"

The search for missing 3-year-old Lina Khil moved to a creek in San Antonio's Northwest Side after the FBI received a lead in the case.

The creek runs parallel to Huebner Road, nearly two miles from where the girl was last seen on Dec. 20. Divers deployed new technology Wednesday that can detect debris in mud and salt. They also navigated through the murky waters to find any clues that could lead to the whereabouts of Lina, KSAT reported.

San Antonio Police Chief William McManus said the dive team consisted of 12 members, who are experts in mapping out places like the creek. So far, this area had not been searched. However, no lead was found as of early Thursday.

"We don't want to leave anything to chance," McManus told reporters during a press briefing Tuesday evening, according to ABC News. "Everything that we get that has any kind of potential at all, we follow it up. And that's what we're doing here today."

Lina disappeared not far from the Villas Del Cabo apartment complex in the 9400 block of Fredericksburg Road. She was wearing a black jacket, red dress and black shoes the day she was reported missing. The police issued multiple Amber Alerts, and said she could be in "grave danger."

"Our Missing Person's Unit is working tirelessly at receiving leads and tips on little Lina's case," a spokesperson for SAPD told ABC News. "We will continue to follow every lead, no matter how small, until Lina is located."

The search has been ongoing for weeks and the community has joined the search crews. Locals have also raised money to help find the child.

“Riaz [Lina's father] and his family are just saying thank you so much to everyone who has been lifting this case up in prayer,” Pamela Allen, the director of Eagles Flight San Antonio – an organization that works closely with families dealing with situations such as this – said. “Everyone who has been thinking about Lina and who has adopted this girl as their own – they understand people care.”

Allen also said the child's father, Riaz Khil, has been emotionally exhausted throughout this investigation.

“When we brought him out here yesterday, he was being briefed by the FBI, and he just went to his knees praying for the best outcome,” Allen said, according to KSAT. “What he is praying for is that someone has her and is keeping her alive and that they will release her and she will be back home. He loves and misses his daughter. It was just an emotional and stressful day.”

Amber Alert
This is a representational image showing a cellphone displays the Amber Alert issued in Los Angeles, California, Aug. 5, 2013. Getty Images/Frederic J. Brown