BOGOTA, Sept. 9 (Xinhua) -- Colombian police said Tuesday that officers had seized 900,000 U.S. dollars allegedly belonging to the "Don Mario" drug cartel.

    Police commander Jose Herrera told reporters that the cash had been hidden in a light aircraft at an airport in northwestern Colombia.

    Two suspects were detained and the nearby area was being checked for more hidden money, he added.

    The Don Mario cartel is one of the most wanted criminal and drug trafficking groups in Colombia.

    Herrera said police had been monitoring and investigating drug traffickers from the cartel for several months before launching the operation. The money was destined for Medellin city in the northwest of the country.

    Medellin is considered one of the most dangerous cities in the world, as drug cartels and deals are rampant there.

    Colombia is one of the main drug producers in the world, while President Alvaro Uribe has introduced severe anti-drug policies with U.S. sponsorship.