KIEV, Feb. 27 - Turkmen President Separmurat Niyazov will probably visit Ukraine in April or May for important natural gas talks with his Ukrainian counterpart Viktor Yushchenko, a source in the Ukrainian government said Monday.

Niyazov??™s visit has been previously scheduled for March, but appears to be delayed for one or two months, the source said. A Turkmen government team is supposed to arrive in Kiev by March 10 to arrange Niyazov??™s future visit.