As the smoke clears above the rubble and bodies of Meikhtila after Myanmar's latest outbreak of Buddhist-Muslim violence, a nervous region is watching.
Myanmar is an ethnic and religious powder keg as its people emerge from under the jackboot of military rule. Any number of simmering internal conflicts have the potential to involve the wider region, risking further tensions within a troubled Association of Southeast Asian Nations or raising alarm in Beijing.
Last year, the long-neglected plight of stateless Rohingya Muslims in Rakhine state drew regional and international attention after deadly clashes with mobs of majority Buddhists left 180 people dead and 110,000 homeless, further crowding the grim camps across in Bangladesh. Not only did the violence raise the spectre of future tensions with Muslim-majority neighbours Indonesia and Malaysia, but it also drew the involvement of the Organisation of Islamic Co-operation.
In a little-noticed move at the weekend, the Islamic body launched a global centre to advocate Rohingya rights. With UN refugee officials describing the Rohingya as some of the most systemically persecuted people anywhere, the organisation's push looks set to be a long-term effort.
The violence at Meikhtila involved Muslims of other ethnicities and saw mobs of local Buddhist men, reportedly including monks, fan out across the central Myanmar town armed with swords, sticks and machetes.
Ethnic Chinese also fear they could find themselves trapped in the violence, a reflection in part of long-held worries after anti-Chinese riots in the 1960s and 1970s. Anecdotal evidence in recent years has pointed to considerable friction on the streets of Mandalay, which has become a jade and property trading hub for increasing numbers of Chinese from Yunnan , some on forged identity papers.
No census has been done for years, but some estimates suggest as many as two million Chinese newcomers in recent years. "We know there is anger at the brazenness of the rich 'carpetbaggers' from Yunnan," said one Yangon trader from an older Chinese family. "But we worry, in times of trouble, we will all be targets. In Yangon, we have always rubbed along together under and against the military. But new times bring new worries for us all."
A stroll through Yangon reveals one of the region's most striking melting ethnic and religious pots, with Burmese, Chinese, South Asians and even Persians living cheek by jowl - a legacy of Myanmar's geography as well as British colonial history. For years, a tiny synagogue was guarded by Sikhs.
The bloodshed in Meikhtila sounded a depressingly familiar toll. Both inside and outside the country, fears are mounting that matters might yet get grimmer still before some stability is found.
There can be no greater threat to Myanmar's reforms - and no greater challenge for its fledgling political and military elites. Neither the government nor the opposition can be immune from their responsibilities.
Greg Torode is the Post's chief Asia correspondent. email@example.com