Police in Kettering are appealing for a man who has gone missing from hospital to contact them.
Pawel Wronowski, 28, left Kettering General Hospital between 9.30am and 12pm on Friday, November 16.
Mr Wronowski requires on-going hospital treatment for a medical condition and officers are appealing for him to contact them and let them know he is safe and well, or to return to Kettering General Hospital to continue his treatment.
He is 5ft 11in tall, of proportionate build, with sandy blonde hair and a goatee beard. He has brown eyes and left hospital wearing pyjamas, although is thought to have other clothing with him.
Mr Wronowski has connections in the West Midlands and police believe he may have travelled there, although he could still be in the Kettering area.
Officers would like to speak to Mr Wronowski and have urged him to contact them on 101, or on 03000 111 222 if he is outside of Northamptonshire.
They are also urging Mr Wronowski to seek medical help as soon as possible.