Police suspect that more ultras were killed in the gun battle that ensued after a patrol party came under fire from the insurgents in the wee hours near Bhatpar village in Bhamragad taluka.

"The gun battle ensued after the police party on anti- naxal operation in Bhatpar area was fired upon by naxals, following which police returned the fire in which four ultras were killed," ASP (Aheri) Rahul Shrirame told PTI over phone.