A morning train to Gatwick Airport was cancelled after two squirrels boarded and one refused to get off – forcing passengers to move away from the “frightened and erratic” animals to another carriage.

The rodent pair jumped on the Great Western Railway (GWR) service from Reading to Gatwick on Saturday and could have become scared after being trapped in the confined space, a spokesperson for the train operator said.

GWR explained that passengers made their way along the train after the rodents boarded the rear carriage, where the train manager locked them in.

A Network Rail member of staff unsuccessfully tried to shoo the animals off the train at Redhill, where the 08:54 BST service had to be terminated, GWR said.

The squirrel that refused to leave was returned to Reading in the train.

A GWR spokesperson said: “We can confirm that the 0854 Reading to Gatwick was terminated at Redhill after a couple of squirrels boarded the train at Gomshall without tickets, breaching railway byeclaws.

“We attempted to remove them at Redhill, but one refused to leave and was returned to Reading to bring an end to this nutty tail.”

In December a hedgehog was found hiding under a train seat on a service between Weybridge and London Waterloo.

The animal, named Hector, was taken in by a rail worker and his family.