The Sri Lankan military has increased its presence in the areas near the University of Jaffna, the Uthayan reported.
Troops who have been based at he main entrance for a few weeks have started questioning passing students on activities inside the university and whether students "are talking in groups", the Tamil daily said.
Sources told the Uthayan that this was due to the forthcoming Maaveerar Naal (Heroes Day) commemorations, which the security forces have attempted to prevent from occurring in previous years.
Jaffna University commemorates Mullivaikal amidst death threats (21 May 2014)
Jaffna Army Commander warns public May 2009 remembrance will lead to arrest (07 May 2014)
Tamils remember Maaveerar in North-East despite SL military violence and intimidation (27 November 2013)
Escalating repression of Maaveerar remembrance met with Tamil defiance (26 November 2013)