Two days after the ending of the ceasefire in Ukraine, and the artillery is back out in force.

This video obtained from Ukrainian military television showed artillery guns firing from a field near the Ukrainian city of Slaviansk, a pro-Russian separatist rebel stronghold.

The content of this video cannot be independently verified.

But there is hope now that a diplomatic solution to the crisis might be in sight.

As the guns fired at home, the Ukrainian foreign minister was taking a walk with his Russian counterpart in the German capital Berlin.

Russian Foreign Minister, Sergei Lavrov said they had agreed to work towards a mutually agreed ceasefire.

(SOUNDBITE) (Russian) RUSSIAN FOREIGN MINISTER, SERGEI LAVROV, SAYING (ACCORDING TO OFFICIAL ENGLISH TRANSLATION):

"We are trying as best as we can to achieve a sustainable ceasefire. This is to be achieved by calling together the members of the contact group, hopefully in the next few days for a very