A pilot flying a US fighter jet over British air space declared an emergency, before seemingly managing to land.

The code was transmitted this afternoon from the the F35 jet as it flew east across north Wales. Tracking site Flight Radar 24 said the aircraft squawked a 7700 code, indicating an emergency onboard.

The plane then disappeared, indicating it had landed, according to WalesOnline. AirNavRadar said the F35LTNG made its way from the Llanberis area, performed a loop around Caernarfon and the Menai Bridge, then flew south across Eryri National Park.