A collision between two trucks has completely blocked a section of the D1 highway near Prague, halting traffic heading towards Brno. The incident occurred at the 23-kilometer mark, within a narrowed construction zone. Police report one of the trucks is immobilized, likely due to a technical failure, and is awaiting a tow. Authorities have closed the highway to facilitate the removal of the disabled vehicle and manage the resulting congestion. Motorists are advised to expect significant delays and consider alternative routes. No injuries have been reported at this time. The duration of the closure remains uncertain, pending the completion of the recovery operation.