MOMBASA, July 26 (Xinhua) -- Kenyan anti-narcotics detectives on Thursday nabbed two men for trafficking heroin in the coastal city of Mombasa.

Following a tip-off, detectives arrested the suspects, aged 34 and 24, in an apartment in a crime-infested district of Mombasa, said Johnstone Ipara, the port city's police commander.

The police also seized several packets of white powder and one million shillings (9,655 U.S. dollars) of cash on the spot, believed to be proceeds from the illegal trade, the Kenyan Directorate of Criminal Investigations (DCI) tweeted later in the day.

Further testing ascertained that the confiscated drugs were heroin, the DCI said.

Ipara told reporters that the case is still under investigation.

Drug seizures have become a common phenomenon in Mombasa, a critical logistics hub in Kenya.