Foreign ministers from the G8 group of nations have condemned in the "strongest possible terms" North Korea's nuclear weapons and ballistic missile programmes.
Tensions have risen on the Korean peninsula in recent weeks.
The ministers also expressed "deep concerns about the increasing human tragedy of the conflict in Syria".
They also endorsed what they called a historic pledge on preventing sexual violence in conflict.
The Group of Eight nations comprises the US, Britain, France, Germany, Italy, Japan, Canada and Russia.
Britain currently holds the rotating chairmanship of the G8 and the talks are a prelude to the annual G8 summit later this year in Northern Ireland.
In a news conference after the talks, UK Foreign Secretary William Hague said that "if the DPRK [North Korea] conducts another missile launch or nuclear test, we have committed ourselves to