  We have monitored 8.6 million stars in the Large Magellanic Cloud for 1.1
years and have found 3 events consistent with gravitational microlensing. We
place strong constraints on the Galactic halo content in the form of compact
lensing objects in the mass range $10^{-4} \msun$ to $10^{-1} \msun$. Three
events is fewer than expected for a standard spherical halo of objects in this
mass range, but appears to exceed the number expected from known Galactic
populations. Fitting a naive spherical halo model to our data yields a MACHO
fraction $f = 0.20^{+0.33}_{-0.14}$, which implies a total MACHO mass (inside
50 kpc) of $8.0^{+14}_{-6}\ten{10} \msun$, and a microlensing optical depth
$9^{+15}_{-7} \ten{-8}$ ($\sim 68$\% CL).
