Sor Sorn and Nat Sreynak, both from Borei Keila community, were arrested this morning as they prepared for a Black Monday campaign gathering in front of their houses. Both were detained in 7 Makara police station until 7:15PM after nearly 11 hours in detention. The two women, who were both wearing black t-shirts, were singled out and arrested by police and para-police at Borei Keila community at about 8.45 as they prepared for a gathering to call for the release of incarcerated human rights defenders, including Boeung Kak Lake community representative Tep Vanny who was arrested during another Black Monday event on 15 August 2016. Since the campaign began in May last year, there have been at least 38 arbitrary arrests of Black Monday participants, who have mostly been detained for hours before being released without charge. Today marked Sor Sorn's fifth arrest, and Nat Sreynak's second arrest, for participating in a peaceful Black Monday gathering.