Shares of Altria Group Inc , the largest U.S. cigarette maker, touched a record high of $67.97 in morning trading.Reynolds American Inc's shares were up 1.4 pct at $51.53, touching a more than 3-month high of $51.84."With Brexit potentially delaying an (interest) rate hike in the U.S., this move likely favors our higher-yielding names, and in particular U.S. tobacco (RAI and MO)," Cowen & Co analysts wrote in a note."We expect that investors will view global tobacco as a relatively safe haven in a risk-off environment," they said.However, shares of Philip Morris International Inc - the international arm of Altria - were down 2.4 pct at $99.47. The company generated more than a third of its revenue from the European Union last year. (Reporting by Sruthi Ramakrishnan in Bengaluru; Editing by Saumyadeb Chakrabarty)