  The Baikal-GVD alert system was launched at the beginning of 2021. There are
alerts for muon neutrinos (long upward-going track-like events) and all-flavour
neutrinos (high-energy cascades). The system is able to get a preliminary
response to external alerts with a temporal delay of about 3-10 minutes. The
Baikal-GVD data processing and the results of the follow-up procedure are
described. We report on the analysis of the coincidence in time and direction
between the Baikal-GVD cascade GVD20211208CA with an estimated energy of 43 TeV
and the announced alert IceCube211208A possibly associated with a flaring state
of the blazar PKS 0735+178.
