(QHA) -

Ukraine has asked the United States for "additional security assistance," according to a Pentagon statement summarizing a call between Ukraine Minister of Defense Valeriy Heletey and Secretary of Defense Chuck Hagel on July 28.

Hagel responded that the U.S. government would review such requests beginning with discussions via the U.S. Embassy in Kyiv.

The request comes as fighting between separatist militants and the Ukrainian government intensified in the area of eastern Ukraine near where Malaysia Airlines Flight MH17 was shot down.

The United States is giving the Ukrainian government $33 million in nonlethal military assistance.

However, thus far the Obama administration has refrained from giving the Ukrainian government any sort of lethal assistance such as ammunition or weapons.