London 2012: RMT Union rejects Tube Olympic pay offer
Union bosses have rejected a "derisory" offer of a £100 bonus for Tube workers during the Olympics.
The Rail, Maritime and Transport (RMT) union demands what it calls "proper rewards" over claims there will be more pressure on staff during the games.
It has already agreed Olympics payments of £500 for Network Rail staff and £600 for London Overground workers.
Transport for London says it will hold more discussions with the union over the issue.
RMT general secretary Bob Crow said: "We will be meeting again next week to press our case for a flat-rate, across-the-board payment which recognises the contribution of all staff throughout the high-pressure Olympics period.
"Other employers, notably London Overground and Network Rail, have come up with serious offers and agreements and we expect London Underground to do the same.
"It is well-documented that transport will be the biggest logistical challenge throughout the Olympics."
London Underground director George McInulty said: "We are determined to properly acknowledge the contribution they will be making to a fantastic Olympics and Paralympic Games while keeping London moving.
"We have put forward our proposals about how our staff could be rewarded based, as usual, on feedback from our customers and we look forward to further constructive discussion on the issue."