Residents in a city apartment complex say they were shaken from their beds in the dead of night by maintenance works being carried out on train tracks by Irish Rail.
They say deafening machinery was being used at 2am to work on the lines close to Crosbies Yard Apartments, just off the North Strand Road.
The apartments, not far from Connolly Station, are surrounded on all sides by railway lines.
David Branagan says he is being woken by the noise and cannot get back to sleep.
"This has happened for two nights in a row now and it just can't go on," he told the Herald.
"I'm actually wearing ear plugs now at night but the noise still wakes me. It's like pneumatic drills or chainsaws. I don't know what they are doing.
"When it happened on Wednesday night, we went to the balcony to see what was happening and noticed that other residents had also been awoken and were out investigating as well. Me and my partner have work early in the morning, I have to be up at 6.30am and there is no chance of getting back to sleep.
"No notices were put up at our complex or through the post. Typically, if any work is to occur which impacts on people, notification must be provided. I think this carry-on is completely disgraceful and utterly disrespectful to the residents of this complex and the surrounding area," he added.
Mr Branagan said the line the works seem to be focussed on is rarely used during the day, so he doesn't understand why the works have to be carried out in the early hours of the morning.
Irish Rail apologised for the disturbance caused during the works.
"We had met and informed the residents about other works carried out in September and October, but the work carried out this week was bridge maintenance which was outside that agreed programme of works," said a spokesman.
"It was envisaged that only hand tools would be needed this week, which would not cause noise, but a chainsaw was used to clear vegetation.
"The work has now ceased and we apologise to the locals for the noise."