Acting Wodonga Unit Controller Lisa Wise said they were shocked and saddened by the theft.

She said while volunteers responded to a crash in West Wodonga a "heartless thief" allegedly broke into a volunteer's vehicle at the unit's headquarters and stole personal belongings, including a laptop.

Wodonga SES volunteers responded to assist a fatal truck crash about 9pm on Tuesday, and while they were at the scene an unknown person entered the unit's headquarters on Victoria Cross Parade on a pushbike.

CCTV footage captured the person moving through the car park attempting to gain access to several cars before leaving, only to return later.

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This time they allegedly gained access to one vehicle and stole a bag containing essential equipment the volunteer requires for work, including a laptop.

Ms Wise said the unit had only just finished replacing $20,000 of vital rescue equipment that was stolen from the same location 14 months ago.

"We are both shocked and saddened that volunteers providing life-saving emergency response to their community have been targeted," she said.

"The VICSES volunteer whose property was stolen has responded to hundreds of rescues and played a key role in the recent fires, taking leave to spend a number of weeks in various support roles and this is the thanks they get."

Wodonga Unit and the VICSES volunteer affected are working with the Wodonga Police in the hopes of identifying the individual.

Anyone with information is urged to contact the Wodonga Police on 02 6049 2600.