Have you seen this teen? Her family and police are worried

Police said Shala Auld, 16, had not been seen or heard from since April 23. She was last seen in Dunlop.

"She is described as being of Caucasian appearance, about 167cm (5'4") tall, with a slim build and long black hair. She was last seen wearing a grey tracksuit top and pants," they said in a statement.

"Police and Shala's family hold concerns for her welfare and are requesting the public's assistance in locating her."

She is believed to have been in the Western Sydney area recently and may be travelling to Queensland.

Another teenager was missing but has since been located safe and well.