The wife of prominent Kenyan activist Boniface Mwangi has issued a plea demanding answers about her husband’s mysterious detention in Tanzania, after days of silence and confusion over his whereabouts.

Mwangi, a fearless voice in Kenya’s civil society, was reportedly arrested in Dar es Salaam on Monday, May 19 alongside Ugandan activist Agather Atuhaire. The two had travelled to observe the treason trial of Tanzanian opposition leader Tundu Lissu-a move that drew sharp reactions from Tanzanian authorities.

Speaking to reporters in Nairobi, Mwangi’s wife, journalist Njeri Mwangi, expressed heartbreak and frustration, saying she had visited the Tanzanian High Commission in search of answers, only to be met with more uncertainty.

“I last spoke to Boniface on Monday afternoon,” she said, holding back tears. “We are being told he has been deported, yet there’s no confirmation. Where is Bonnie? If he’s hurt, we want to know. If he’s safe, we want proof. If he’s dead-God forbid-give him back to us.”

According to Njeri, Tanzanian lawyers were informed of an impending deportation, but since then, no communication has been made. Amnesty International has raised alarm, stating that Mwangi and Atuhaire were being held incommunicado by military forces.

The duo was part of a larger East African delegation that included legal and civil rights figures from Kenya, such as former Justice Minister Martha Karua, ex-Chief Justice Willy Mutunga, LSK Council member Gloria Kimani, and activists Lynn Ngugi, Hanifa Adan, and Hussein Khalid. Most were denied entry or detained upon arrival, then deported to Nairobi.

Tanzanian President Samia Suluhu responded sternly on Monday, warning against what she termed “regional interference” in internal matters. “We will not allow ill-mannered individuals from other countries to cross the line here,” she said during the launch of the country’s new foreign policy.

As questions mount, Njeri’s plea remains hauntingly simple: “Where is Bonnie?”