Tamil National Alliance, Northern Provincial Council member M.K. Sivajilingham said that several Tamil political parties in the North supported the hartal.
He said there is a concern that state sponsored terrorism was behind the killing of the two Jaffna university students.
University students in Jaffna and other parts of the country also staged a protest yesterday against the killing.
President Maithripala Sirisena last week called for an impartial investigation into the death of the two youth.
The Criminal Investigation Division (CID) is investigating the deaths of the two Jaffna University students.
The two youth were shot dead by the Police after they reportedly failed to stop when ordered to do so by the Police in Kankasanturai last week.
Five Police officers were arrested over the incident and were immediately interdicted and were remanded by court.
The Government said necessary steps have been taken to ensure that the law is fully implemented in this regard. (Colombo Gazette)