Chinese coast guard vessels entered Japan's territorial waters near the China-claimed Senkaku Islands for the second day in a row Sunday.

The Japan Coast Guard said two Chinese coast guard ships intruded into the waters near the group of uninhabited islets in the East China Sea around 3:50 a.m. and exited after 9 a.m.

The incursions come after a new law took effect in China at the start of this month explicitly allowing the Chinese coast guard to use weapons against foreign ships that Beijing sees as illegally entering its waters.