A loud explosion occurred at a western Japanese port on Saturday during prime minister Fumio Kishida's visit, but there were no injuries, Japan's NHK television reported.Mr Kishida was unharmed and evacuated to the Wakayama prefectural police headquarters, NHK said.

A loud explosion occurred at a western Japanese port on Saturday during prime minister Fumio Kishida's visit, but there were no injuries, Japan's NHK television reported.Mr Kishida was unharmed and evacuated to the Wakayama prefectural police headquarters, NHK said.