President steps up security after bombing in Southern Russia

Russian president Dmitry Medvedev is in the Russian city of Pyatigorsk where a car bombing took place on Tuesday.

The Russian leader is discussing with local authorities security measures and aid for the blast victims.

Those responsible for Tuesday's car bombing in southern Russia will be found, and killed should they attempt to resist arrest, declared the Russian president.

“I am sure you will do the utmost to help those injured in the blast, that you will provide them with all necessary treatment,” Dmitry Medvedev said during the meeting. “What about the manhunt for the perpetrators, the orders have been given. The investigation will go ahead and I am sure those responsible for the attack will be punished.”

Fifteen of the thirty people injured in Tuesday's car bombing remain in local hospitals.

Meanwhile, authorities have stepped up security across Moscow fearing more attacks.

In the last two days, police responded to several alerts amid reports bombs had been planted in a business center, an apartment block and a court in the capital.

People were evacuated from the buildings but no explosives were found.