Scottish Water will keep in close contact with those living near construction work on Scotland's largest waste water tunnel, it has pledged.

The three-mile-long Shieldhall Tunnel from Craigton Industrial Estate to Queen's Park in the south side of Glasgow is being made to tackle flooding in the city.

On Monday, infrastructure secretary Keith Brown visited the site to see the work progressing.

The first 250m section of the tunnel is being built using the open cut technique, involving excavation between concrete piled walls bored into the bedrock.

This work will enable a 1000-tonne, 180m-long tunnel boring machine to be launched and start construction of the main part of the tunnel.

When complete, it will provide 90,000 cubic metres of extra storm water storage, the equivalent of 36 Olympic-sized swimming pools.

Speaking during his visit, Mr Brown said: "I'm delighted to be here to see how the Shieldhall Tunnel project is progressing.

"This project is the biggest upgrade of Glasgow’s sewer network in over a century and is a central part of Scottish Water’s investment programme to improve the area’s drainage and sewerage infrastructure, which is essential to the Greater Glasgow area’s economic prosperity.

"It is another fine example of Scottish Water’s determination, as a public sector organisation to deliver for its customers and the Scottish Government is fully supportive of this kind of investment in key infrastructure projects in Scotland’s biggest city."

Douglas Millican, Scottish Water’s chief executive, said: "Much of the Greater Glasgow area’s existing waste water infrastructure was built in Victorian times and the modernisation of the system and construction of new underground assets, such as the Shieldhall Tunnel, will protect the natural environment, reduce the risk of flooding and meet the needs of growth, economic development and regeneration.

"It is also supporting jobs and employment opportunities, including a number of apprenticeships."

Scottish Water said there may be disruption for residents in the affected areas in the short term but they will keep in close contact with those living in the south side.

The overall project began in 2015, with utility diversions being put in place.