WRAPUP 10-Russia hammers Ukraine's Donetsk region after seizing Luhansk

(Adds Luhansk governor's comments)

* Visit to captured Lysychansk shows widespread destruction

* Russia took control of all of Luhansk region on Sunday

* Donetsk governor says there's 'no safe place' in region

* Ukraine seeks Turkish help to probe suspected grain theft

By Simon Lewis and Max Hunder

SLOVIANSK, Ukraine/KYIV, July 5 (Reuters) - Russian forces struck targets across Ukraine's eastern Donetsk region on Tuesday, a day after President Vladimir Putin declared victory in the neighbouring province of Luhansk after months of gruelling attritional warfare in which both sides lost many men.

Donetsk and Luhansk comprise the Donbas, the industrialised eastern part of Ukraine that has seen the biggest battle in Europe for generations. Russia says it wants to wrest control of the entire Donbas from Ukraine on behalf of Moscow-backed separatists in two self-proclaimed people's republics.

After Russian forces on Sunday took control of Lysychansk, the last bastion of Ukrainian resistance in Luhansk, Ukrainian officials said they now expect Moscow to focus its efforts especially on the cities of Sloviansk and Kramatorsk in Donetsk.

There was heavy fighting at the edge of Luhansk region, its governor Serhiy Gaidai told Ukrainian television, saying Russian regular army and reserve forces had been sent there in an apparent effort to cross the Siverskiy Donets River.

"A large quantity of equipment is being sent towards Donetsk region," Gaidai said, adding Ukrainian forces were destroying considerable amounts of Russian equipment and fuel, suggesting Moscow's forces "will have to take a breather at some point."

Reuters could not independently verify his comments.

On Tuesday, Russian forces struck a market and a residential area in Sloviansk, killing at least two people and injuring seven, local officials said.

A Reuters reporter on the scene saw yellow smoke billowing from an auto supplies shop, and flames engulfing rows of market stalls as firefighters tried to extinguish the blaze.

Donetsk regional governor Pavlo Kyrylenko said Sloviansk and nearby Kramatorsk had suffered heavy shelling overnight. "There is no safe place without shelling in the Donetsk region."

LONG WAR AHEAD?

Russia's defence ministry, which says it does not target residential areas, said it had used high-precision weapons to destroy command centres and artillery in Donetsk, where Ukraine still controls some major cities.

Moscow ramped up its war rhetoric with Duma speaker Vyacheslav Volodin saying Ukraine had become a "terrorist state" that was doing everything to ensure Russia did not stop its invasion at the borders of the Donbas.