Terrorism [Images] is the biggest threat to South Asia's stability, Prime Minister Manmohan Singh [Images] told the South Asian Association for Regional Cooperation summit on Saturday.
 
"Terrorists and extremists don't know borders. We must act with determination to fight terrorism. We cannot lose the battle against ideologies of hatred," said Dr Singh.

Terrorism is expected to be one of the main topics of discussion during the three-day summit, which started today in Colombo.

Further details are awaited.

                        PM asks Pakistan to honour its commitment on stopping terror