Update(11:17ET): In another ominous sign signaling China intends to escalate its threatening and retaliatory military drills now encircling Taiwan, state-run Global Times has cited a source saying that a PLA aircraft carrier group with a nuclear-powered submarine has now joined the ongoing exercises off Taiwan.

Additionally, the English-language government mouthpiece GT is now calling the five-day drill that have commenced a rehearsal for a "reunification operation" - and says that after Pelosi's provocative and damaging visit, "exercises blockading" Taiwan are to "become routine". 

This as Japan's Foreign Ministry has said Thursday evening (local time) that five missiles fired by China have landed within Japan's exclusive economic zone (EEZ). Taiwan's defense ministry, has meanwhile said 22 more Chinese air force jets have buzzed its airspace.