“This will undermine relations between countries,” RIA Novosti quotes him.
Jun said the United States authorities should understand the consequences of such a move, noting that the issue of territorial integrity is a "red line".
“We do not allow anyone to cross this red line.
We strongly oppose any separatist movements in the context of Taiwan, as well as interference in the internal affairs of the PRC,” he concluded.
Media reported that Pelosi could arrive in Taiwan on August 2.
It was also pointed out that the plane of the Speaker of the US House of Representatives could land in Taiwan under the pretext of a breakdown or refueling.
At the same time, John Kirby, coordinator for strategic communications at the National Security Council, stressed that Pelosi's possible visit to Taiwan does not mean any changes in American policy towards the island.