Tarime–Rorya Regional Police have confirmed the arrest of Charles Onkuri Ongeta, a 30-year-old dual citizen of the United States and Kenya and serving US Army Sergeant, at the Sirari border crossing on Sunday, November 16, 2025.
Ongeta was apprehended after entering Tanzania from Kenya in a Toyota Land Cruiser, registration KDP 502 Y, carrying four CS M68 hand-launched grenades.
Authorities stated that under Tanzanian firearms legislation, even with a permit, Ongeta would not have been authorised to bring such weapons into the country. Evidence is still being collected and Ongeta remains under questioning as the investigation continues. Police have indicated that appropriate legal action will follow once the probe is complete.
The arrest comes amid a nationwide crackdown on foreigners in Tanzania following widespread unrest after the October 2025 general election. President Samia Suluhu Hassan has blamed foreign actors for instigating violence in the aftermath of the polls, which were widely criticised by regional observers, including the Southern African Development Community, for failing to meet democratic standards.
Authorities have tightened controls at border points, requiring all foreigners to register immediately and warning that failure to comply will result in legal consequences. Citizens have been urged to report any suspicious activities involving foreigners. Kenyans crossing into Tanzania under “Good Neighborliness” passes must now enter and return on the same day, with overnight stays requiring special permission.
The government’s measures form part of a broader effort to monitor foreign nationals and prevent further unrest. Security agencies have emphasised that these actions are necessary to protect public safety and maintain order amid heightened political tensions.
The arrest of Ongeta, a serving US military officer, has drawn attention to the strict enforcement of Tanzanian laws and the heightened scrutiny faced by foreigners in the country. Authorities continue to investigate whether the weapons were intended for unlawful purposes and are urging residents and cross-border travellers to comply fully with registration and reporting requirements.
