This is the Global News podcast from the BBC World Service.

And Allerys Anderson and in the early hours of Thursday,

the 4th of May, these are our main stories.

President Zelensky insists Ukraine didn't launch a drone attack on the Kremlin,

but Russia says it was an attempt to assassinate Vladimir Putin.

It is a new drug for Alzheimer's disease,

the big breakthrough sought by scientists.

Police in Serbia say the shooting dead of eight pupils and a security guard by a 13-year-old

schoolboy was premeditated.

He said himself that he planned to commit this crime.

This is a list of children he planned to execute.

Also in this podcast, the US Federal Reserve has increased interest rates to the highest level

in 16 years, and how rich is the family of Robert McGabe, the former president of Zimbabwe.

Ukraine has responded to Russia's allegation that it attempted to assassinate President Putin

in a drone attack on the Kremlin by inserting it isn't in key interest to attack the Kremlin.

Instead, President Zelensky says his country is focusing on liberating its own territory.

We don't attack Putin or Moscow.

We fight on our territory.

We are defending our religious and citizen.

We don't have enough weapon for these.

A Russian statement said the government there reserved the right to take retaliatory measures

wherever and whenever is deemed necessary.

...