India, June 29 -- Russia's foreign intelligence chief, Sergei Naryshkin, held a phone call on Sunday with the director of the US Central Intelligence Agency, John Ratcliffe on Sunday.

"I had a telephone conversation with my American counterpart, and we agreed to call each other at any time to discuss issues of mutual interest," Sergey Naryshkin said on Russian state television, news agency AFP reported.

However, Naryshkin didn't provide any details on what was discussed in the call with CIA chief Ratcliffe.

The call comes even as Russia launched its biggest aerial attack against Ukraine in the intervening night of Saturday and Sunday.

The interaction between the two spy chiefs comes after their first call in March amid rapprochement b...