(ATCHISON, Kan.) The United States Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) and the Atchison Police Department have increased the reward for information leading to the arrest and conviction of those responsible for detonating an explosive device in Atchison back in July 2018.

The incident happened on July 6, 2018 when an explosion in downtown Atchison damaged numerous structures on the 100 block of N. 8th Street.

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After the explosion, an investigation began by the ATF and the Kansas State Fire Marshal's Office. According to the Atchison Kansas Police Department, investigators were able to determine the cause of the explosion was likely an improvised explosive device placed outside the Hair Spital Barber Shop, 120 N. 8th Street.

The reward has been increased to $10,000.

Investigators would like to speak to anyone who may recognize a minivan that was captured by surveillance cameras at a business near the blast moments before the device detonated.

Anyone with information about the vehicle or the explosion is asked to contact the ATF at 1-888-ATF-BOMB (1-888-283-2662) or on their website. Tipsters can remain anonymous.