A head of a Buddhist nationalist group says a prominent anti-Muslim activist has been arrested for posting a provocative statement on Facebook about Myanmar's army commander and the country's de facto leader, Aung San Suu Kyi.

Win Ko Ko Lat, chairman of Myanmar National Network, on Thursday described as unfair the arrest Peace and Diversity Party chairman Nay Myo Wai.

Nay Myo Wai was arrested Wednesday after a complaint was filed against him for a Facebook posting saying that army commander Min Aung Hliang had not seized power because he wanted to marry Suu Kyi, a baseless assertion.

He could face up to three years in jail and a fine if convicted of using a telecommunications network to extort, threaten, obstruct, defame, disturb, inappropriately influence or intimidate.