This is the shocking moment at least three men appear to climb out of a manhole in the middle of busy traffic in the US border town of El Paso.

The cell phone footage is thought to have been shot on Saturday night in Texas and has sparked fears migrants are finding new ways to enter the country.

The identities of the three men filmed are not known and it is unclear where they have come from.

The clip shows one man emerge from the sewer tunnel before making a quick dash to the sidewalk.

Men appear to have been filmed climbing out of a manhole in the US border town of El Paso

The phone footage is thought to have been shot on Saturday night in Texas. The identities of the men are not known and it is unclear if they are migrants

One man emerges from the sewer tunnel before running away to the sidewalk

Another man appears, pushing up the manhole as traffic speeds overhead. He narrowly misses a car overhead before a third man appears and the clip ends

El Paso sits directly against the Mexican border. It's thought there could be an underground secret tunnel that allows illegal immigrants to get across into the United States

A second man then appears, tentatively pushing up the manhole as traffic speeds overhead.

He narrowly misses a car driving past before finally climbing free. Finally a third man is then filmed emerging from below ground before the video ends.

Two pedestrians appear to spot the men as they cross the street, thought to be at the intersection of 4th Avenue and S. El Paso Street, just a few blocks from the US-Mexico border.

A man filming the clip is heard gasping and saying: 'O my god.'

As the second man emerges those filming note 'another one dude', before laughing in disbelief.

The man in the car then asks: 'Do you think they are from jail? Or do you think they are immigrants?'

His friend replies: 'Immigrants for sure.'

The footage was said to have been filmed at the intersection of 4th Avenue and S. El Paso Street, pictured, just a few blocks from the US-Mexico border

In April footage appeared to show several men, thought to be migrants, again climbing out of a manhole in El Paso.

Speaking then, a Border Patrol spokesman told KTSM 9 News that 12 men thought to have crossed into the country illegally were detained.

Spokesman Thomas Schwieger added: 'It took a while to respond to because of the large groups (of asylum-seekers) we're having to face (at the border).'

DailyMail.com has contacted US Customs and Border protection for comment regarding Saturday's incident.