Hope for missing Kiwi

Johnny Sleigh. Photo / Supplied

The family of a New Zealander who went missing after a night out in London is refusing to give up hope he might be found alive.

Johnny Sleigh, 36, hasn't been seen since leaving salsa club Guanabara in Holborn nine nights ago.

His sister Catherine Booth said the family was trying to remain positive.

"We are having our ups and downs but we are all helping each other through. The detectives...really couldn't be doing any more," she said.