Robert Lindsay has issued a stark warning to his fans after his friend's daughter was allegedly drugged with a bizarre substance by three men outside a nightclub in London.

Robert Lindsay

Robert Lindsay

The 'My Family' star took to his Twitter account this morning (23.11.17) to alert his followers after he learned his pal's daughter had "lost all her senses and couldn't remember a thing" after she inhaled a date rape drug blown in her face in the capital.

He wrote: "WARNING! A friends daughter was recently approached by 3 men outside a London club and a substance blown into her face,in her shock she inhaled....It was a date rape drug.She was saved but girls beware Friends came to her aid but within seconds she lost all her senses and couldn't remember a thing (sic)"

It's not known whether the incident has been reported to the police but the 67-year-old actor later retweeted a post from his friend Alix Wilton Regan claiming that men are blowing a bizarre substance in women's face because it's the "new way" to rape them.

She wrote: "New ways to rape women. Something that will never surprise me. (sic)"

It's not known what substance Robert had been referring to but the public are being made aware of a tasteless powder known as the "devil's breath", which paralyses victims and wipes their memory, used in sexual assaults and other crimes.