The police's work to find the man began at around 7 pm, but the man has been missing since 2.30 pm on Wednesday.
The man had two black dogs with him when he disappeared.
By 8 p.m., police had found the dogs - but not the man.
Calls for observations
The police announced via their website that they wanted the public's observations regarding the disappearance.
The man is about 175 centimeters tall, has a normal physique and was probably wearing a black cap, green-brown jacket with yellow elements and a hood and blue jeans.
Observations can be submitted to the police via 112.