A French tourist who went missing after an argument with her mother in Brisbane has been found in New South Wales.

The 18-year-old had last been seen on Sunday morning at Kangaroo Point in Brisbane's inner-city after an argument with her mother.

They were travelling around the country together but the teenager had not made contact since the argument.

There were concerns for her welfare as she has no access to money or support.

This afternoon, Queensland Police said she had been found safe and well over the border.

Meanwhile, police continue to search for 16-year-old Jayde Kendall, who has been reported missing from the Lockyer Valley, west of Brisbane.

She has not been seen since Friday afternoon on Highview Avenue at Gatton.

Her family said it was out of character and the teenager had made no contact with family or friends.

Ms Kendall is described as Caucasian, 155 centimetres tall, with brown hair, green eyes and a proportionate build.

Anyone with information that could help should contact Crime Stoppers anonymously via 1800 333 000 or www.crimestoppers.com.au 24 hours a day.