PITTSBURGH, Sept. 16 (UPI) -- Pittsburgh officials are still trying to deal with permit applications from protest groups targeting the Group of 20 summit next week.

Some organizers expect thousands of marchers calling for action on climate change or economic justice, the Pittsburgh Post-Gazette reported. Others plan smaller events to call for justice in a specific country.

Wazo Myint, an exile from Myanmar, has applied for a few visible spots close to the David L. Lawrence Convention Center. He will be joined by other expatriates from the country formerly known as Burma.

"My target audience will be the delegates themselves," he said. "We just want

to show our presence to the world leaders."

Police held a meeting Tuesday for business owners in the Oakland neighborhood, warning them that they could become vandalism targets during the G20 meeting.

A court hearing is scheduled Wednesday over two public-access areas where protesters can gather without permits. Activists say the Secret Service security perimeter will make those areas almost impossible to reach.