Mystery surrounds a Chinese Airbus which has flown into Hawke's Bay Airport.

The plane arrived yesterday and Newstalk ZB has confirmed it's staying for the rest of the week.

Airport chief Nick Story will only say the Beijing Capital Airlines plane is a charter.

Rumours on social media are swirling that it might be investors looking to buy local vineyards and farms.

Others suggest it's possibly a sneaky trip by Madonna.

Other popular theories are it's a group of golfers heading to the luxurious Cape Kidnappers golf course.