New Zealand said the Chinese navy conducted a live-fire exercise in international waters near the Pacific nation on Saturday, a day after it held a similar drill between Australia and New Zealand that forced airlines to divert flights.

Australia and close ally New Zealand have been monitoring the three Chinese navy vessels – a frigate, a cruiser and a supply tanker – since they were spotted off Australia’s shores last week

The vessels were sailing in the Tasman Sea, and their announced intent to perform exercises prompted a call for commercial flights to divert course.