WATER bosses have apologised over an increase in unpleasant smells in Southampton.

It comes after a number of Millbrook residents reported a spike in sewage odours in the area.

Now Southern Water, which runs Millbrook wastewater treatment works, has admitted it is to blame for the increase.

The company says a power-cut affected its 'odour control system'.

It also blamed the recent summer heatwave, which rocketed temperatures above 30C in Southampton.

Now Southern Water has apologised for the increase in odour.

In a statement on Twitter, the company said: "We would like to apologise unreservedly to residents who have been affected by increased smells from our Millbrook wastewater treatment works.

"Sewage treatment works are essential for maintaining standards in water quality, however we have a duty to ensure we are doing everything we can to reduce the impact of our vital operations on nearby residents.

"Recently we suffered a power outage at our Millbrook wastewater treatment works, which affected our odour control systems.

"Our specialist crew worked 24/7 to find and fix the issues and this was resolved last week.

"However, our customers have told us they have noticed an increase in odours during the heatwave.

"Odours from wastewater treatment sites can increase during hot weather.

"We would like to thank our customers for their patience and understanding."