VIENNA — The U.N. nuclear chief says he is convening a high-level conference to examine safety procedures at nuclear plants worldwide in the wake of the Japan disaster.

Yukiya Amano says his International Atomic Energy Agency will hold the meeting possibly in late June.

Amano says the meeting will focus on assessments of the Fukushima Daiichi disaster, lessons that need to be learned and ways of strengthening the international response to such accidents.

He said today that — beyond experts — the IAEA’s 151 members will be sending government representatives, saying presence at a “political level” is necessary due to the seriousness of the crisis.