US President Barack Obama spoke to Prime Minister Manmohan Singh on Tuesday and discussed with him the situation in Afghanistan and further steps required to bring peace and stability in the country.

During the "brief conversation", the two leaders also discussed the forthcoming summit on climate change in Copenhagen, the Prime Minister's Office said in New Delhi.

Singh told Obama that India would play a constructive role in the negotiations and looked forward to a successful outcome in Copenhagen.

Obama's call to Singh takes place close on the heels of the two leaders' meeting in Washington during which the Afghan issue was discussed prominently.

Singh had said it was important for all major regional and international players to put their weight behind the Afghan government.

Obama had highlighted the importance of tackling violence and extremism emanating from the region "in a serious way".