As if Friday rush-hour traffic in our capital city wasn't bad enough – the Port Tunnel is currently closed in BOTH directions.

A northbound truck which went on fire a little after 7am is responsible for the disruption, with emergency services – including ten fire extinguishing vehicles – being called to the scene earlier today. The truck has been removed from the scene.

It has been reported that one man was taken to the nearby Mater hospital, and while there are no details of his condition, it is not thought his injuries are life-threatening.

Smoke could at one stage been seen billowing from the tunnel's entrance, but the flames have since been extinguished and engineers are on site to access the damage caused.

Unsurprisingly, traffic remains "very heavy" in the aftermath – a particular concern for anyone trying to make it to Dublin Airport for a morning flight.

Many reports on social media say that the roads surrounding the area and in the city centre are at a "standstill."

Via Twitter, the Dublin Fire Brigade highlighted that fire in an enclosed space presents an "extreme danger".

Many commuters reported that it took them four or five times the usual time to travel to their places of work. 

Rachel Last told independent.ie that it took her more than an hour to travel just 6.5km.

"I live in Swords – I used the back roads to get out when I left my home at 7.20am this morning.

"I then drove to Coolock to drop my son at my mother's before driving to the village where I got on a bus at 8am. 

"We drove for five minutes on the Malahide Road. We are now stuck in traffic at the Marino Fairview junction. We have been stuck here for at least 20 minutes.

"I spoke to another woman on the bus and she has been on it since 7.25am.

"People are getting off the buses on the Malahide Road and are walking the two or three miles [3-5km] to the city centre to get work," she said.