U.S.-Iran ceasefire proves fragile as Tehran claims violations

The temporary U.S.–Iran truce appears fragile after Iran’s parliamentary speaker, Mohammad Bagher Ghalibaf, accused Washington of three violations, including backing continued Israeli strikes in Lebanon. Ghalibaf said peace talks would be “unreasonable” in light of the alleged breaches. CNBC’s Dan Murphy reports on the latest developments surrounding the ceasefire deal.