Two American teenagers who were fundraising for a missionary trip to Glasgow have cancelled their plans after they received "very personal attacks".

Aina and Ferran Rivas became online sensations as a result of their video, which aimed to raise money to "turn the situation around" in the "industrial wasteland" of Scotland's largest city.

The video was viewed thousands of times, with Scots taking to social media to mock their depiction of the city.

One comment on their YouTube page read: "Aye come to Glasgow and we'll set about ye. Bring that Trump f***y with yous."

The siblings, aged 19 and 17, had aimed to take part in a project to clear ground for a new school and share "a message of hope and goodwill with energy and enthusiasm" as part of the Hope Youth Corps volunteering scheme.

The negative reaction caused "much anguish and distress", the group's parent organisation said, but other American youths will be travelling to Glasgow in June to take part in the project.

Hope Youth Corps say they are discussing the "threats" with police.

A spokeswoman for Hope Worldwide, based in Wayne, Pennsylvania, said: "The parents of Aina and Ferran have respectfully declined requests for interviews based on the very personal attacks on the family which have led to much anguish and distress.

"Those of us who know and have spoken with the family regret that good intentions have caused such a response.

"Although Aina and Ferran are no longer participating in the Hope Youth Corps in Glasgow, the project is likely to go forward pending a discussion with the Glasgow police regarding the many threats that have been made.

"For the safety of our youth volunteers, we are unable to provide further detailed information about the project."

Aina and Ferran's crowdfunding page was taken offline and their YouTube video was set to private, though copies exist online.

Set to emotional piano music, the brother and sister promise to come to Scotland as part of a two-week "reconstruction and cleaning effort for one of Glasgow's industrial wastelands."

At one point, 17-year-old Ferran speaks about Glasgow proving wrong the prosperous image of the UK as a map depicting an optimistically large Glasgow flashes up on screen.

The pair then reference the Glasgow Effect, saying scientists had tried to explain the phenomenon as high levels of poverty, stress and a "culture of alienation and pessimism".

As well as mocking their use of images of urban deprivation, comments of social media highlighted their pronunciation of Glasgow as "Glas-cow".

The Hope Youth Corps project in Glasgow is due to start in June this year, though it is unknown where exactly it will take place or how many young Americans will be involved.

Advertising the scheme, the charity says volunteers will have the chance to travel to "ruggedly beautiful Scotland" where the project's impact will be felt "in both the physical and spiritual renovation of the nation's largest city, Glasgow".

Hope Worldwide is a non-profit organisation centred on Christian values, which allows young Americans to volunteer in charity projects around the world.

Speaking earlier, a Glasgow City Council spokesman said: "If they make it to Glasgow they'll find a city that looks very different to the one shown in their video."