China said it was conducting military exercises Saturday off its coast opposite Taiwan after warning Speaker Nancy Pelosi of the U.S. House of Representatives to scrap possible plans to visit the island democracy, which Beijing claims as part of its territory.

The ruling Communist Party’s military wing, the People’s Liberation Army, was conducting “live-fire exercises” near the Pingtan islands off Fujian province from 8 a.m. to 9 p.m., the official Xinhua News Agency said. The Maritime Safety Administration warned ships to avoid the area.