Queensland police are renewing an appeal to help locate a missing father and son, who were last seen in northern NSW.
56-year-old Ken Dixon and his 8-year-old son were last seen in Lismore on June 13.
It is unknown if they remain in Northern NSW, or have returned to Brisbane.
Concerns are held for their welfare, and family has not been in contact with them since June 10.
Ken Dixon, is described as Caucasian in appearance, 163cm tall, slim build and grey hair.
His son is described as Caucasian in appearance, 100cm tall, heavy build and brown hair.
They are believed to be travelling in a white 2011 ford Transit van with Queensland registration 065RTG.
Anyone who may have information in relation to their whereabouts are asked to contact police.