Heads of delegations to the fourth-round of six-party talks concluded their meeting at the Diaoyutai State Guesthouse Saturday morning.

Prior to this, the Chinese delegation held one-on-one talks with the delegations of the United States and the Democratic People's Republic of Korea (DPRK), respectively.

The US and the DPRK delegations also held their sixth meeting Saturday morning.

The six nations will discuss a joint document, said US top negotiator Christopher Hill earlier Saturday.

"We will have a lot of discussion about the text, and see if we can come to some agreement today," said Hill.

The parties concerned were expected to work for drafting a joint document at the meeting of delegation heads, said Japanese delegation head Sasae Kenichiro.

The fourth round of the six-party talks on the Korean Peninsula nuclear issue entered the fifth day Saturday, the longest ever, as the past three rounds lasted three or four days.

Source: Xinhua