Kenya froze key money transfer companies vital for Somalia Wednesday after the police chief issued a list of 85 people and businesses with suspected links to the Al-Qaeda-linked Shebab.
Top of the list issued in an official government gazette notice was alleged Shebab commander Mohamed Mohamud, said to be the mastermind behind the university massacre of almost 150 people last week.
But the list also included money transfer companies that provide a crucial way for relatives to send remittances from abroad to war-torn Somalia, including Dahabshiil, one of the most important transfer companies across the wider Horn of Africa region.
Their suspension in Kenya would have major impact on money transfers, with aid agencies warning in the past their suspension would hit some of poorest people the hardest.
With no formal banking system in the impoverished country, diaspora Somalis turn to money transfer services to send money back home to support their families, sending some $1.3 billion (1.1 billion euros) each year, dwarfing foreign aid.
Kenyan President Uhuru Kenyatta on Saturday warned Shebab fighters his government will respond to their killing of 148 people in the university in Garissa in the "severest way" possible, with warplanes on Monday attacking Islamist bases in southern Somalia.
But Kenyatta also warned that the masterminds behind last Thursday's attack were inside Kenya, not Somalia.
"The planners and financiers of this brutality are deeply embedded in our communities," he said.
"We will not allow them to continue their lives as normal, the full force of the law will be brought to bear with even greater intensity that has been the case in previous years."
- 'Critical lifeline to millions' -
The notice, issued under Kenya's prevention of terrorism act and which gives the names listed 24 hours to demonstrate why they "should not be declared a specified entity," was signed by Kenya's police chief Joseph Boinett.
There are huge flows of money both ways between the neighbouring nations, for trade and business, as well as in lifeline remittances to war-torn Somalia from relatives in the region.
The day-long seige at Garissa University, situated near the border with Somalia, claimed 148 lives, including 142 students, three police officers and three soldiers.
It was Kenya's deadliest attack since the 1998 bombing of the US embassy in Nairobi.
"Actions taken are consistent with the international law on financing terrorism.... We produced a list of persons and entities who may have been involved in facilitating terrorism activities," said top treasury official Kamau Thugge.
Many of those listed are individuals, but also include transport companies and HAKI Africa, a Mombasa-based civil society group.
The Shebab group has carried out a string of revenge attacks in neighbouring countries, notably Kenya and Uganda, in response to their participation in the AU force.
On Saturday, Shebab warned of a "long, gruesome war" unless Kenya withdraws its troops from Somalia.
Shebab fighters also carried out the Westgate shopping mall attack in Nairobi in September 2013, a four-day siege which left at least 67 people dead.
The list comes a day after Somali President Hassan Sheikh Mohamud said his government was working to reform banking laws to comply with international anti-terrorism legislation, pleading for more time as "remittances are a critical lifeline to millions in poverty."
Stopping remittances "would only compound the misery of a population cowed by terrorism," he said in a statement.
A $215,000 (200,000 euro) bounty has also been offered for alleged Shebab commander Mohamud, a former Kenyan teacher also known as "Kuno", who is believed to in Somalia.
A Nairobi court on Tuesday ordered five Kenyans and a Tanzanian to be detained for 30 days while police investigate possible connections to the attack.
The gazette notice declares five organizations as terrorist groups including the Shebab and Kenya's coastal secessionists, the Mombasa Republic Council (MRC).
It also lists Al-Qaeda, Boko Haram and Islamic State as terrorist groups.
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