  We report observations of a relatively long period of 3He-rich solar
energetic particles (SEPs) measured by Solar Orbiter. The period consists of
several well-resolved ion injections. The high-resolution STEREO-A imaging
observations reveal that the injections coincide with EUV jets/brightenings
near the east limb, not far from the nominal magnetic connection of Solar
Orbiter. The jets originated in two adjacent, large, and complex active regions
as observed by the Solar Dynamics Observatory when the regions rotated to the
Earth's view. It appears that the sustained ion injections were related to the
complex configuration of the sunspot group and the long period of 3He-rich SEPs
to the longitudinal extent covered by the group during the analyzed time
period.
