Injured CRPF jawan being treated in Army helicopter. (AFP photo)

NEW DELHI: The government has taken as a "challenge" the killing of CRPF personnel by Naxals in Sukma in Chhattisgarh, Union Home Minister Rajnath Singh said on Monday and vowed that "no one will be spared".

The home minister said he would possibly go to Sukma on Tuesday.

"It is a very sad and unfortunate incident ... We have taken the attack as a challenge," Singh told reporters here.

Later, in Mandla in Madhya Pradesh, he said the incident was "very painful" and "No one will be spared."

"I have already asked Union Minister of State for Home, Hansraj Ahir to leave for Sukma," Rajnath Singh said.

Earlier, Singh had asked Ahir to travel to Chhattisgarh to take stock of the situation.

"Extremely pained to know about the killing of CRPF personnel in Sukma. My tributes to the martyrs and condolences to their families," Singh tweeted.

At least 25 CRPF personnel were killed and seven wounded in Sukma district on Monday, the deadliest attack by Naxalites targeting security forces this year.

