Irish Rail has launched a safety campaign on social media with the hashtag "Dumb Truckers".

It's highlighting a major increase in the number of high vehicles that crash while trying to drive under railway bridges.

There have been 68 "bridge strikes" so far this year, compared to 85 crashes in all of 2014.

They company has created a video with some of what it calls the "greatest hits" in recent times.

The company says that such crashes cause delays and safety risks to passengers.

Jane Cregan of Irish Rail thinks the phrase "Dumb Truckers" is appropriate in some cases: