The Japanese government will consider developing the J-Alert emergency early warning system, after apparent confusion when warnings were issued about a North Korean missile launch through the system on Thursday, Chief Cabinet Secretary Hirokazu Matsuno said Friday.

 "Ministries and relevant government agencies are jointly studying remedial measures," Matsuno told a news conference.

 Meanwhile, Matsuno emphasized that there was no problem with how the government would respond to the missile launches, saying, “Amidst the various information that has reached us, we have issued warnings via the J-Alert early warning system as soon as possible.”

 The Chief Cabinet Secretary expressed his sense of caution by saying that North Korea may take more provocative actions, including a nuclear test.

J-Alert is a satellite-based system designed to send emergency information, such as missile and tsunami warnings, from the Japanese government to municipalities across the country.  Information is passed on to local residents via disaster radio systems or emails.