Updated report 10.36am: POLICE are still searching for missing Pottsville girl Electra Doyle.

Crime manager Inspector Brendon Cullen said police believed she was in the company of a relative.

"We was supposed to go back into her father's custody on May 13," he said.

"Her father did not report her missing until May 21."

The police hold serious concerns for her welfare.

Insp Cullen said police were following up on a number of leads received by the public, both in Tweed and elsewhere.

If you have spotted the young girl contact Crime Stoppers on 1800 333 00.

She's described as being of Caucasian appearance, 155cm tall, of athletic build, with blonde shoulder-length hair and blue eyes.
 

Initial report, May 25, 6am: POLICE hold serious concerns for a missing Pottsville child.

Electra Doyle, 11, was last seen at her home on May 10.

"We want just for any one with information of her current location to come forward," Tweed-Byron Local Area Command Inspector Darren Steel said.

Insp Steel said he didn't know if she had crossed the border to Queensland.

Tweed police have conducted extensive inquiries to locate Electra and said they held serious concerns for her welfare.

Electra was reported missing to police on after she failed to return from a visit with a relative on May 13.

She's described as being of Caucasian appearance, 155cm tall, of athletic build, with blonde shoulder-length hair and blue eyes.