  We suggest a super Poincar\'e invariant action for closed eleven dimensional
superstring. The sector of physical variables $x^i$, $\theta_a$,
$\bar\theta_{\dot a}$, with $a,\dot a=1...8$ and $x^i$ the transverse part of
the D=11 $x^\mu$ coordinate is shown to possess free dynamics.

High Energy Physics - Theory