Alan Johnston, the journalist freed this week by kidnappers in Gaza City, arrived back in Britain Saturday, the BBC reported. Johnston, 45, flew to London from Tel Aviv, arriving at Heathrow airport in the afternoon, dpa reported. The BBC's Gaza correspondent was expected to continue on to Scotland to be reunited with his family later Saturday. Johnston was held by Army of Islam militants in Gaza for nearly four months. He was released Wednesday into the hands of Hamas movement.