The Sam Rainsy Party will hold a ceremony to commemorate the 13th anniversary of the March 30, 1997, grenade attack on an opposition political rally that left at least 16 dead and more than 100 injured. According to a letter to Phnom Penh Governor Kep Chuktema, signed by SRP Secretary General Ke Sovannaroth, the party expects more than 400 participants and monks to take part in the event. Khieu Sopheak, spokesman for the Ministry of Interior, said the government always allowed such ceremonies, but he added that they must request permission through lower authorities.