Updated 20:45 BST

Sri Lanka’s Terrorist Investigation Division (TID) has detained another Tamil student from Sabaragamuwa University, following his discharge from hospital where he was receiving treatment after being attacked.

Santhirakumar Sutharshan from Muhamalai was arrested on his return to the university hostel by Sri Lanka’s TID. The student had been receiving treatment at Balangoda and Ratnapura after he had been attacked on Sunday.

Following Sutharshan’s arrest, his parents were told that he had been sent to the infamous 4th floor of Sri Lanka's Criminal Investigation Department in Colombo.

Another Tamil youth, second-year student Yoganathan Nirojan, was arrested on Tuesday and is also being detained at the 4th floor.

See more the Uthayan here.

Lawyers representing families of disappeared Tamils have filed an application in court, requesting further excavation of a mass grave that was unearthed in Mannar in December last year, reports BBC Tamil.

The remains of at least 80 people were excavated from the mass grave in Thirukketheeswaram, with many of the wounds discovered on the bodies believed to have been caused by gunshots. Both the Bishop of Mannar and the Tamil National Alliance called for an international investigation into the mass grave site.

The Sri Lankan courts approved the request for further excavations, and also ordered an affidavit from the Mannar regional chair person, who stated that there were no records of a cemetery in the area, to be produced before them.

See more from BBC Tamil here.