Enda Kenny has written a letter to German Chancellor Angela Merkel to express sympathy over the Berlin attack.

Italian police shot dead the Tunisian man believed responsible for the attack, killing him after he pulled a gun on them during a routine check.

Speaking about the issue of security in an interview with Sarah Carey, Kenny said that countries with bigger security and bigger forces had failed to stop attacks within their borders.

"You can never rule anything out," he said.

"But we like to think that in this country people are vigilant; that we are careful and we will do everything we can to protect our citizens."

Mr Kenny said Defence Forces and gardai are making every effort "to see that we are protected and that lives are protected in that regard."

He finished by saying "I would hope that nothing like that will happen here."

Security was just one of the issues Kenny spoke about in a recent interview with Newstalk's Sarah Carey. He also spoke about Brexit and what it means for Ireland as well as the current homelessness crisis.