The mother of a Hungarian man who has been missing for a month has made an emotional appeal for information about her son.

Marta Vass Gogos, who cannot speak English, made the plea asking the public to help in the search for Milan Vass, 29, of Airdrie, North Lanarkshire.

Mr Vass was last seen at his West Kirk Street home by a friend at about 10.30pm on August 19.

In a statement issued via a police spokesman, Mrs Vass Gogos said: "It has now been four weeks since our beloved Milan went missing and, as a family, we are distraught.

"We cannot understand why he has not been in touch with us and we are very anxious to hear from him.

"Milan, your sisters Ticia and Daniella and I miss you very much, and all your family and friends want to see you return home safe and sound.

"Please, if anyone has any information on where our beloved boy is, please let the police know. If you are watching this Milan, please come home, we miss you and we love you very much."

Mr Vass had returned to Scotland from Hungary the previous day with his father and some colleagues to work as a roughcaster after a few months in his native country.

Police Scotland - which has been working closely with officers in Hungary - confirmed Mr Vass's out-of-date passport and UK phone sim had been left at his home in West Kirk Street.

Chief inspector Gavin Russell, leading the investigation, said Mr Vass had been dealing with personal issues which left him in a "low mood", resulting in a hospital admission while back in Hungary.

Mr Russell added that the missing man was "not overly keen" to return to Scotland, a fact he said could be a factor in his disappearance.

No money has been withdrawn from any of Mr Vass's bank accounts and he did not get in touch with family or friends on his birthday, September 5.

Police have revisited the street where he was last seen to speak to pedestrians and motorists in the hope of uncovering more information.

Mr Vass is described as 6ft 2ins, of medium build with short black hair, brown eyes and a scar on his forehead.

He was wearing a grey t-shirt with ''California'' written on it, a blue Adidas tracksuit top, blue Adidas tracksuit trousers with orange stripes and possibly a red jumper.

He is known to frequent Strathclyde Country Park, Bothwell and Uddingston. Mr Vass had only recently moved to Airdrie before he went missing.