Four Sri Lankan Army men including two senior officers were today arrested over the disappearance of a prominent journalist ahead of the 2010 presidential polls while he was working for former Army chief Sarath Fonseka, who challenged then President Mahinda Rajapaksa.
They include two lieutenant colonels, a sergeant and a Corporal, police spokesman Ruwan Gunasekera said.
"On the orders of the Inspector General of Police the CID began an investigation. This will be continued," Gunasekera said.
The arrests today came in addition to the four who are already in custody.
One of them was a rehabilitated member of the LTTE, Gunasekera said.
Prageeth Eknaligoda disappeared in January 2010 just days prior to the presidential election held in the same month.
Eknaligoda, a cartoonist, had worked for the then opposition challenger - the former controversial Army chief Fonseka - who oversaw the military campaign against Tamil rebels in which thousands of civilians are said to have died.
Eknaligoda's disappearance became a major human rights thorn for Rajapaksa's regime which came under huge international pressure to probe the disappearance.
After Rajapaksa won the 2010 presidential elections, Fonseka was jailed, tried for corruption and treason, and deprived of his political rights.
Maithripala Sirisena, who defeated Rajapaksa in presidential elections in January this year, had pledged fresh investigation into the case after quashing his previous convictions.
In March this year, the new government also conferred the highest military rank of field marshal on Fonseka after restoring all his political rights.