A tentative agreement has been reached in contract negotiations aimed at averting a strike at the Toronto Star newspaper, a union official said.

John Spears of the southern Ontario newspaper wing of the Communications, Energy and Paperworkers Union of Canada said Saturday afternoon that details won't be released until after a ratification vote, expected this coming week.

The two sides had been negotiating to renew their previous three-year contract for employees in areas including editorial, advertising and circulation.

Round-the-clock talks between Star publisher Torstar Corp. and the union, which represents the staff at Canada's largest-circulation newspaper, were extended past a Friday midnight deadline.

The union had said talks were focused on seniority, benefit cutbacks and changes or elimination of overtime and weekend pay.

Also included in negotiations was language on the responsibilities of reporters filing online multimedia content.