"We didn't want any confrontation with the nationalists so we allowed them to shut down our schools," said Tin Shwe, the chairman of the Muslim schools, referring to an incident on April 28.
Tin Shwe, and a lawmaker from the ruling National League for Democracy, said the nationalists came to the schools with local administrators and policemen.
On Tuesday the group - again accompanied by local authorities and police - searched a building in a different part of Yangon shortly before midnight, claiming some Rohingya Muslims were staying there illegally.
Local residents confronted the nationalists, gathered in front of the building, prompting police officers to fire warning shots to break up the crowd.
At a news conference on Tuesday, organised shortly before the arrest warrants were issued, the nationalists vowed to keep fighting Muslim influence in the country, citing government reluctance to "protect race and religion" in Myanmar.
"We are protecting our people because government authorities are reluctant to do that. Even though many people hate us, we are not creating problems," U Thuseikta, a monk and a senior official of the PMU, told reporters.
Tin Shwe, the Muslim community leader, said: "We want to get equal treatment and be protected by the government - we voted for them with our hands."
So far Suu Kyi's government has denied access of international NGOs and UN and EU investigators to investigate cases of genocidal programs directed against the Rohingyas who mostly live in the northern part of the Arakan state.
Here is the link to a video that is two year old about genocide agenda in Myanmar. Because of its value, the link is provided.