Their collective warning came at a function at the BMICH this afternoon (15) to mark the 30th anniversary of ‘Ravaya’ newspaper.
Both leaders stressed that a communal clash should not be allowed at any cost.
Meanwhile, the CPA says recent incidents in both the north and the south pose grave threats to communal reconciliation and coexistence.
In a statement, it points to the death of two Jaffna University students in a police shooting and the use of disabled soldiers in a protest in Colombo.
The CPA also notes with concern the hate speech used by certain Buddhist monks as well as some social media against the minority communities.
It points to the use of abusive language by Ampitiye Sumanaratana Thera of Batticaloa against a Tamil Grama Seva officer.
Moderates have denounced his remarks, but there have been opinions supporting him in social media too.
Extremist forces are repressing dissenting voices and opposing legal amendments to strengthen democratic governance, the CPA charges.
It cautions that the situation will worsen to uncontrollable levels if the government fails to enforce the law against the perpetrators irrespective of their positions, BBC Sandeshaya reports.