Makonda said police have tightened security at all border points and airports to ensure that the two white men who were seen on surveillance video were not sneaking out of the East African nation.
It is believed that the abductors had access to guarded hotel grounds because its gates were "believed to have been left open deliberately", suggesting that they may have had help from hotel staff. Mambosasa also revealed that several suspects, including hotel staff, were interviewed and multiple arrests have already been made.
According to mwananchi.co.tz, the youthful tycoon was kidnapped at around 5am from Collessium Hotel as he worked out in a gym.
The kidnappers, two of which were described as white men, fired shots into the air before peeling off with Dewji in a auto, witnesses said.
It is has not been established why the businessman, 43, was abducted.More news: US, Russia space crew aborts mission after booster failure
The billionaire heads the MeTL Group which operates in about 10 countries with interests in agriculture to insurance, transport, logistics and the food industry.
Mr Dewji was born in Tanzania and studied at Georgetown University in the United States.
Mr Dewji served as a ruling party MP for a decade until 2015.
"They came in a vehicle to the hotel and started shooting in the air before they took him away".
Dewji was the first Tanzanian to be featured on the cover of Forbes Magazine in 2013 and has been featured on three separate occasions.More news: Sarah Silverman Rips 'Too Far Gone' White Women Who Voted for Trump
They then pulled him into their auto and sped off while shooting in the air.
Forbes puts real time net worth at $1.5B (over Sh100billion).
Mr Dewji is also a major sponsor of one of Tanzania's biggest football teams, Simba.
Police in Dar es Salaam are investigating the alleged kidnapping.More news: Meghan Markle’s Estranged Half-Sister Denies Being Turned Away After Uninvited Palace Visit
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