At least 33 protesters were killed by Myanmar security forces on Wednesday, the highest number since a Feb. 1 military coup, AP reports citing a compilation of local reports.

The data, mostly from local media and Facebook postings, was compiled by a data professional in Yangon, the country's largest city. In many cases it includes the victims' names, ages, hometowns and where and how they were killed. The deaths included a 14-year-old boy.

The AP acknowledged in its report that it was unable to independently confirm most of the reported deaths, but that a sampling of online postings matched what is included in the compilation.

The previous highest total was recorded on Sunday, when the United Nations Human Rights Office reported 18 fatalities nationwide.

As the crisis remains in Myanmar, the U.N. Security Council is expected to hold a closed meeting on the situation on Friday. The AP report that the meeting was requested by the United Kingdom.