 After president Mahinda Rajapaksa was ousted from power, investigations into the disappearances were launched by the new government which revealed a secret unit within the Sri Lankan Navy that was responsible for several disappearances.In March 2015, three navy personnel and a former police officer were arrested in relation to the killing of parliamentarian Nadarajah Raviraj in 2006 and in August 2015, police also announced that they had arrested several military personnel in relation to the disappearance of journalist and cartoonist Prageeth Eknaligoda.On 2015 October 11, Former Eastern Province Chief Minister Sivanesathurai Chandrakanthan alias Pillayan of the former paramilitary group TMVP was arrested by the Criminal Investigation Department in connection with the killing of former TNA parliamentarian Joseph Pararajasingham who was shot dead on December 25, 2005 in Batticaloa.