British police and friends of a missing New Zealander in the UK are worried about his safety.
Joseph Day, 31, lives in Bristol and was last seen on Saturday night.
His partner, friends and Avon and Somerset Police are concerned for his welfare and his lack of contact is very out of character.
In a statement, police said: "He is originally from New Zealand and is described as being of mixed ethnicity, with short dark hair and stubble. He's around 5ft 11in tall with an athletic build. He has sleeve tattoos on both forearms and may be wearing black high top Nike trainers, a long black wax jacket and a blue Seattle Mariners baseball cap."
Pictures posted online have been widely shared, and leaflets have been put up in the area.
On Facebook, his fiancé posted: "If you have any friends in the UK/Bristol please share. My fiancé Joseph Day hasn't been heard from since Saturday evening 9.30pm BST time, 32 hours ago.
"Joseph would have been seen around the Clifton area as we live on Pembroke Road, on foot as his bike was left out at our flat. He would have been wearing a cap and a dark jacket.
"This is extremely out of character for him, we always keep in touch every minute of the day. Everyone who knows Joe loves him very much, he is incredibly special to me, and his family and friends. Please help and share so we can find him."