IG Joseph Boinnet said police have stepped up vigilance and called upon Kenyans to be on the alert. (Photo: File/Standard)

The Inspector General of Police Joseph Boinnet has urged Kenyans to remain alert and report any suspicious activity or persons following the deadly terror attacks that have rocked French capital Paris.

The series of coordinated attacks, totaling to six, in Paris and its environs left over 120 people dead and hundreds injured.

“Whilst we in the Police have stepped up vigilance, we call on the (Kenyan) public to exercise maximum level of alertness,” said Boinnet on his twitter account.

In the wake of the latest Paris attacks, Boinnet said he was in full realisation that the same terror threat remains real in the country.

“Let's work together to protect our motherland,” he said while condoling with the French people.

Leaders around the world expressed their displeasure at the cold blood murder following which France announced closure of its borders for security purposes.

President Francois Hollande, who was watching a football match at Stade de France where four people died, said the rampage was the work of Islamic State.

There was, however, no immediate claim of responsibility by any terror group.

President Uhuru Kenyatta said Kenya stands will France in the fight against violent extremism, and condemned the terrorist’s abuse of their liberties by harming innocent civilians.

President Barack Obama condemned as an "attack on all of humanity" Friday's wave of bombings and shootings in Paris that prompted increased security in New York and Washington.

British Prime Minister David Cameron convened a meeting of his government's emergency response committee to discuss the attacks in Paris, as UK police prepared to step up security.

Berlin police on Saturday boosted security in the German capital, with barricades put up at French sites including the embassy where flags were flying half-mast.

In Singapore, the Home Affairs Minister K. Shanmugam said these attacks (in Paris) show that no country is immune, even when there is a state of heightened security.

-Additional information From Reuters and AFP