BUENOS AIRES (Reuters) - The United States is deeply concerned about Venezuela's failure to embrace a robust dialogue to address its political crisis, U.S. Secretary of State John Kerry said on Thursday.

"Regarding Venezuela we have deep concerns about Venezuela failing to embrace a robust, productive dialogue," Kerry told reporters at a news conference in Argentina. "We're deeply committed to restoring rights of the people in Venezuela."

(Reporting By Gram Slattery; Writing by Arshad Mohammed and Lesley Wroughton)