Iran accuses U.S. of "spreading lies" about jetliner crash

Iranian officials have denied claims that they mistakenly shot down a Ukrainian passenger jet and accused the United States of "spreading lies" about intelligence suggesting they did. The plane crashed early Wednesday morning soon after takeoff from Tehran's airport, killing everyone on board.

CBS News has learned that U.S. officials are confident Iran shot down the jetliner in the hours after the Iranian missile attack on U.S. targets earlier this week. There were 176 people killed in the crash, mostly Iranian and Canadian nationals. Canada's Prime Minister Justin Trudeau has also said that his country has intelligence from its own agencies pointing to Iranian missiles hitting the jet.

CBS News visited the crash site on Friday and found that it had already been scrubbed of virtually all debris.