Manmoham Singh, Sonia Gandhi in Chhattisgarh

RAIPUR: Prime Minister Manmoham Singh and UPA Chairperson Sonia Gandhi arrived here today in the wake of the deadly Naxal attack on a convoy of Congress leaders in Chhattisgarh's Sukma district.

Twenty seven people, including senior Congress leaders and security personnel, were killed in the attack yesterday.

"Prime Minister Manmohan Singh and UPA Chairperson Sonia Gandhi will pay tribute to the deceased here at Congress Bhawan and later they will leave for Jagdalpur to meet those injured in the incident," a senior party leader told PTI.

Congress Vice President Rahul Gandhi today met state Congress chief Nand Kumar Patel's family members here at Devendra Nagar and expressed his condolence over the demise of the senior party leader.

Heavily-armed Maoists ambushed a convoy of Congress leaders in Chhattisgarh's Sukma district yesterday, killing 27 people including senior Congress leader Mahendra Karma, and injuring 32 others.