BRIEF-Ontario Premier Says Stay At Home Order Extended To A Total Of Six Weeks

* ONTARIO PREMIER DOUG FORD SAYS CLOSING ALL NON-ESSENTIAL CONSTRUCTION TO SLOW SPREAD OF COVID-19

* ONTARIO PREMIER SAYS WILL SET UP CHECKPOINTS AT PROVINCIAL BORDERS WITH MANITOBA AND QUEBEC * ONTARIO PREMIER SAYS STAY AT HOME ORDER EXTENDED TO A TOTAL OF SIX WEEKS Source text for Eikon: Further company coverage: [ ]