The soldiers were just days away from returning from service, according to the article.
Canadian twitterers quickly shared thoughts about the news.
@erindrawson (Ottawa, Ontario): we lost four more in afghanistan.
@elysiabrooker (Montreal, Quebec): 4 soldiers killed today in Afghanistan. What is it going to take for the government to wake up & withdraw. This war will have no "winner"
@StephenBlais (Orleans, Ontario): is very concerned about new CDN deaths in Afghanistan
@Bill_Owen (Ottawa, Ontario): 4 More Canadians killed in Afghanistan. 116 down, how many more to go? Why are we there again?
@ChrisLaBossiere (Edmonton, Alberta): Holy [expletive], I am [expletive] steaming. Four Canadians killed in Afghanistan http://tiny.cc/GfB84 (TODAY). APOLOGIZE NOW Fox.