A Chinese food deliveryman who was hit by a tree being cut down by a city contractor while riding his bike through a Brooklyn park earlier this week has died, officials said Wednesday.

Gin Liu, 50, was hit by the tree around 1 p.m. Monday in Coffey Park in Red Hook, officials said. He was taken to Methodist Hospital in critical condition, but died on Tuesday.

The Parks Department said at the time that they were “conducting a thorough investigation.”

A city source said the contractor was doing work as part of a post-Hurricane Sandy tree-replacement project. The city was looking into what precautions were being taken by the contractor.

The city’s standard safety protocols require a safe work zone with cones, caution tape and a worker on the ground to flag approaching pedestrians. RML Construction was the contractor performing the work.

Liu worked for Ling Gee, a nearby Chinese food restaurant.