Stefanie Pieper, 31, disappeared in Graz, Austria, after she had been enjoying a Christmas party with a mate over the weekend - her boyfriend has since been arrested in Slovenia Stefanie Pieper has more than 42,000 followers on Instagram (Image: Jam Press)

The sudden disappearance of a beauty influencer has sparked concern after she sent a text to her mate about a 'creep' lurking outside her flat just before vanishing .

Stefanie Pieper, 31, has become the focus of an extensive cross-border police search in Europe following her failure to show up for a photoshoot on Monday. The influencer, boasting over 42,000 followers on Instagram , had been enjoying a Christmas do with a pal in Graz, Austria.

She sent a text early Sunday confirming she'd safely reached her flat via taxi

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