Sydney (AFP) - The Dalai Lama has urged fellow Nobel peace laureate Aung San Suu Kyi to do more to help Myanmar's persecuted Muslim Rohingya minority amid a worsening migration crisis.Despite thousands of Rohingya fleeing on harrowing boat journeys to Southeast Asia to escape poverty and discriminatory treatment by the country's Buddhist majority, opposition leader Suu Kyi is yet to comment.Observers have attributed this to fears about alienating voters ahead of elections slated for November.The Tibetan Buddhist spiritual leader said she must speak up, adding that he had already appealed twice to her in person since 2012, when deadly sectarian violence in Myanmar's Rakhine state pitted the Rohingya against local Buddhists, to do more on their behalf."It's very sad.