TOKYO, May 3 -- NHK World issued the following news:

Switzerland says it will go ahead with an international conference next month to develop a peace process for Ukraine. It says the meeting will build on a peace plan advocated by Ukraine and other proposals.

The Swiss government said on Thursday that it will hold the Summit on Peace in Ukraine at the Burgenstock resort on June 15 and 16. It said it had invited more than 160 delegations from around the world to the gathering.

Switzerland said Russia had not been invited at this stage as Moscow has repeatedly and publicly expressed no interest in participating in the summit.

Switzerland described a peace process without Russia as unthinkable and indicated Moscow would be encouraged to jo...