A teenager has been suspended after a fellow pupil had his drink spiked with Viagra while on a school trip to Berlin, his father has said.

The 15-year-old, who attends Etonbury Academy in Arlesey, Bedfordshire, had been on a visit to the German capital when the incident happened.

The boy’s angry father told their local paper The Comet the 'nasty' prank was also shared on Snapchat.

The 16-year-old who spiked the drink has been suspended for two days but the boy’s father said he should have received a harsher punishment.

Etonbury Academy told the paper it was aware of the incident and had undertaken an investigation.