The US has signed a deal with Kyiv to share profits from the future sale of Ukraine's mineral and energy reserves, after months of tense negotiations.

The United States and Ukraine are inching closer to signing a mineral deal after months of fraught and chaotic negotiations, although a last-minute hurdle still needs to be overcome.

A minerals deal between Ukraine and the United States could finally be signed as early as Wednesday after weeks of intense negotiations that at times turned bitter and temporarily derailed Washington’s aid to Ukraine.