The bin strike in Brighton and Hove is set to escalate after rubbish collectors called another strike for next Monday.
The GMB union is already five days into an official walkout, following a dispute with the council over cuts to allowances.
Members of their union are in talks with the council this afternoon after the two parties spent yesterday trying to broker a deal.
When last night's talks ended, the council's chief executive Penny Thompson said: "I know the mess and rubbish is building up across the city and I'm truly sorry we are in this situation.
"I would like to reassure residents we are doing all we can to swiftly find an agreed resolution. It is vital that we have an allowances system which is fair and consistent for staff across the council."
The current strike ends on Thursday with refuse workers due back at work for the first time on Friday. They could then walk out for for another five days from Monday.
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