  We report the magnetic susceptibility and the magnetization under pressures
up to 1.7GPa above the critical pressure, Pc ~ 1.5GPa, for H // a, b, c-axes in
the novel spin triplet superconductor UTe2. The anisotropic magnetic
susceptibility at low pressure with the easy magnetization a-axis changes to
the quasi-isotropic behavior at high pressure, revealing a rapid suppression of
the susceptibility for a-axis, and a gradual increase of the susceptibility for
the b-axis. At 1.7GPa above Pc, magnetic anomalies are detected at T_MO ~ 3K
and T_WMO ~ 10K. The former anomaly corresponds to long-range magnetic order,
most likely antiferromagnetism, while the latter shows a broad anomaly, which
is probably due to the development of short range order. The unusual decrease
and increase of the susceptibility below T_WMO for H // a and b-axes,
respectively, indicate the complex magnetic properties at low temperatures
above Pc. This is related to the interplay between multiple fluctuations
dominated by antiferromagnetism, ferroamgnetism, valence and Fermi surface
instabilities.
