09/11/2011 04:00 EDT | Updated 11/10/2011 05:12 EST

Ontario leaders pause to mark 9/11 anniversary on Day 5 of election campaign

TORONTO - Ontario's major three party leaders are expected to pause at the end of a heated first week of the election campaign to commemorate Sept. 11.

Premier Dalton McGuinty will be in London later today to attend a memorial event to the 2001 terror attacks after he breakfasts with Oakville firefighters.

Progressive Conservative Leader Tim Hudak begins his day at a 9-11 memorial at the U.S. consulate in downtown Toronto, where he will lay a wreath.

He then travels to Hamilton where he will visit the St. Joseph's Healthcare hospital and is expected to take any questions from reporters.

NDP Leader Andrea Horwath has only one event scheduled for tomorrow, and she is not expected to speak. She will attend the Toronto Emergency Services' Sept. 11 memorial at Nathan Phillips Square in the city's downtown.

Sunday marks the 10th anniversary of the terrorist attacks in the U.S. that killed nearly 3,000 people, levelled the World Trade Center buildings and sent planes crashing into the Pentagon and into a field in Pennsylvania.

The day of solemn remembrance may serve as a reprieve for the leaders after nearly a week of a bitter campaign.

On Saturday, Premier Dalton McGuinty held no public events, but the Liberals held a press conference to defend and try to tone down Conservative anger over an immigrant tax credit.

Under their proposed program, businesses could qualify for a credit of up to $10,000 to offset training costs for up to one year for new Canadian citizens who have been here five years or less and are in professions such as architecture, accounting or engineering.

The Progressive Conservatives painted themselves as champions of Ontario's taxpayers Saturday while labelling their rivals — namely McGuinty — as cash-hungry tax collectors.

Meanwhile, Horwath took her job creation message to a receptive audience on the streets of Hamilton, hugging and high-fiving supporters as she pledged to create and keep more jobs in the province.