Thailand says it has bombed a logistics centre near the Cambodian town of Poipet, known for being a major casino hub and the biggest land crossing between the two countries.
The bombings come as renewed border clashes show no sign of abating.
Cambodia's defence ministry stated that Thai forces dropped two bombs, while the Thai side claimed the targets were facilities storing rocket systems.
The renewed fighting this month has killed at least 21 people in Thailand and 17 in Cambodia, with around 800,000 people displaced, officials reported.
In a statement, the Cambodian defence ministry said Thai forces struck the Poipet area around 11:00 AM local time.
Shortly after, Thai Air Force spokesman Air Marshal Jackkrit Thammavichai reported that the military targeted a centre used for storing BM-21 rockets, claiming no civilians were harmed.
The bombings mark the first strikes on Poipet, which is frequented by Thai gamblers and houses an important international checkpoint.
Earlier this week, Thailand reported that approximately 5,000 to 6,000 Thai nationals are stranded due to Cambodia's closure of land border crossings.
Cambodian authorities stated the closures were necessary to protect civilians, suggesting air travel as an alternative for those wishing to evacuate.
The century-old border dispute saw a dramatic escalation on 24 July with a barrage of rockets from Cambodia into Thailand followed by retaliatory air strikes, leading to intense fighting that included civilian casualties.
Despite a ceasefire established with the help of international leaders, hostilities have reignited this month, with both parties blaming each other for the breakdown of peace.
Earlier in the week, Cambodia accused Thailand of bombing Siem Reap province, known for its ancient temples, during this latest surge of conflict.
