Stephen Carroll

And I'm Stephen Carroll.

Cuban forces say they've killed a number of people who opened fire from an American registered speedboat.

The country's interior ministry said the vessel, which had 10 people on board, approached the Cuban coast.

Four were killed in the confrontation, while six others were injured and are now understood to be in custody.

Cuban authorities claim the occupants were armed and intended to enter the country to fight against the government.

U.S.

Secretary of State Marco Rubio says officials are looking into the incident.

Marco Rubio speaking there as the episode threatens to escalate an already tense standoff between the U.S.

and Cuba.

The London Stock Exchange Group has seen its shares rise over 5% after it unveiled a new £3 billion share buyback as it announced its latest results.

LSEG reported total income for the full year of almost £9 billion, meeting analysts' estimates.

The earnings also come after it emerged the activist hedge fund Elliott Investment Management had taken a significant stake in the firm.

When asked about the investment, CEO David Schwimmer said the group remains receptive.

Stock Exchange Group's David Schwimmer there speaking to us on Bloomberg Radio this morning.

The gains in Elsec's shares today are the most since the 11th of February when Elliot's investment in the company first became public.

US and Iranian officials are meeting in Geneva today for the latest round of nuclear talks.

Ahead of those discussions, the US government imposed sanctions on more than 30 entities that support Iranian oil and weapons sales.

Republican Senator Steve Davies says Iran's leadership presents a threat.

Republican Steve Davies there speaking to Bloomberg yesterday.

According to the U.S.