  We present observations of an HI cloud complex most likely located in the
Virgo galaxy cluster, first reported by Kent et al. (2007). The complex
consists of five clouds, detected in the data set of the ALFALFA extragalactic
HI survey at Arecibo. The clouds have radial velocities between cz~480 and 610
km/s. At the Virgo cluster distance, they are spread over a projected span of
170 kpc and have HI masses ranging from 0.48 to 1.7 x 10^8 Msun. The overall HI
mass of the complex is 5.1 x 10^8 Msun. The clouds' velocity widths vary
between 50 and 250 km/s. New results of follow-up aperture synthesis
observations conducted with the Very Large Array are also presented, which
yield a higher resolution view of two of the clouds in the complex. These two
resolved clouds show no evidence of symmetry in the gas distribution or of any
ordered motions. The possibility that the complex is a group of primordial
objects, embedded in their own dark matter halo is thought to be unlikely.
Scenarios in which the clouds have been removed from the disk of a galaxy
traveling at high speed through the intracluster medium are considered. The
most likely among those is thought to be one where the clouds were separated
from NGC 4445 at a time >0.5 Gyr ago. The orbital velocity of the clouds and
the putative parent galaxy would now be seen at a relatively large angle with
respect to the line of sight.
