  We have detected transient X-ray activity from the X-ray burster 4U~0614+091
simultaneously with BATSE/CGRO (20-100 keV) and ASM/RXTE (1-12 keV). The peak
fluxes reach approximately 40 mCrab in both instruments over a period of about
20 days. The variable emission shows a clear anticorrelation of the hard X-ray
flux with the soft X-ray count rate. The observed anticorrelation is another
clear counterexample to the notion that only black hole binaries exhibit such
correlations. The individual spectra during this period can be fit by power
laws with photon indices 2.2+-0.3 (ASM) and 2.7+-0.4 (BATSE), while the
combined spectra can be described by a single power law with index 2.09+-0.08.
BATSE and the ASM/RXTE are a good combination for monitoring X-ray sources over
a wide energy band.
