Thousands of people are using Flightradar 24 to track a US Army Blackhawk helicopter near the Ukrainian border.

The Blackhawk took off from Mielec in Poland at UTC 01.00 and planned a flight to Rzeszow but instead flew much further south to the Ukrainian border.

WATCH Video shows giant AN-225 burning

It then turned north along the Ukrainian border.

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SEE: Gorgeous drone photos of the AN225.

Airlineratings.com was developed to provide everyone in the world a one stop shop for all things airline related, formed by a team of aviation editors, who have done forensic research on almost every airline of the world.

Our rating system is rated from one to seven stars for security, with seven being the highest rating. Within each airline you will find the country of origin, airline code, booking URL and seat map information. The rating system takes into account a number of different factors relating to audits from aviation governing bodies, major associations as well as airline-specific safety data. Each airline has a breakdown of safety ratings so you can see exactly how they rank.

Over 230 of the airlines on the site that carry 99% of passengers worldwide have a product rating. Since low-cost, regional and full-service carriers are so different, we’ve built a different rating system for each, which can be found within each airline.