Flying Squad officers raided the Nairobi home of businessman Jimmy Wanjigi on Monday.
Wanjigi’s house is located opposite that of US ambassador to Kenya Robert Godec.
About 10 Subaru Outbacks are in the luxurious home, The Informer’s witness said.
Opposition leaders including Siaya Senator and lawyer James Orengo went to the home.
Orengo was with Suna East MP Junet Mohamed, Muhoroni MP Onyango K’Oyoo and former Machakos Senator Johnson Muthama.
Earlier today officers raided a home in Malindi suspected to belong to him and recovered five AK 47 guns and hundreds of bullets.
The billionaire has been accused of smuggling guns into the country with accomplices.