Feb 3 (Reuters) - Wall Street's main indexes dropped at

the open on Monday as fears of a full-blown trade war and its

impact on the global economy jolted markets around the world

after President Donald Trump levied steep tariffs on Mexico,

Canada and China.

The Dow Jones Industrial Average fell 276.5 points,

or 0.62%, at the open to 44,268.15. The S&P 500 fell 70.9

points, or 1.17%, at the open to 5,969.65​, while the Nasdaq

Composite dropped 412.1 points, or 2.10%, to 19,215.375

at the opening bell.

(Reporting by Shashwat Chauhan in Bengaluru; Editing by

Shinjini Ganguli)