A bus with an advert attacking trans children is driving past schools in Madrid this week.

It was a direct reaction to a campaign from trans support Chrysallis group. The LGBTI support group launched an awareness campaign using the slogan ‘There are girls with penises and boys with vulvas’.

When Haste Oir (‘Make Yourself Heard’) failed to have the adverts pulled after a petition, the group responded with their own transphobic campaign.

Their bus reads: ‘Boys have penises, girls have vulvas. Don’t let them fool you. If you’re born a man, you’re a man. If you’re a woman, you will continue to be a woman.’

Haste Oir’s bus will circulate in the capital throughout the week, passing many schools, but will not make any ‘fixed stops’.

Actuall, Haste Oir’s media site, reported the bus will travel to other Spanish cities as ‘a counter campaign to respond to the message by the Chrysallis association’.

However, they say it is also to raise awareness of a pamphlet they produced last November.

The brochure features a cover of two children raising their arms in a Nazi salute to a rainbow flag.

The group claims sexual diversity laws in Spain rewards ‘the conversion of individuals to homosexuality’. They also claim LGBTI people want straights to become ‘second-class citizens’.

LGBTI group Arcópoli is considering taking legal action against Haste Oir.

Madrid City Hall, according to El Pais, says the campaign bus does not meet municipal requirements and is studying possible ways to take it off the road.