THE BRONX - Mayor Bloomberg is once again attempting to crack down on illegal guns during his final days in office, with a new focus on online sales.

Bloomberg announced the results of a new investigation from the group 'Mayors Against Illegal Guns’ earlier today. The study says that online gun sellers have been transferring tens of thousands of firearms every year over the Internet without conducting background checks.

Bloomberg says that one in three gun ads on the website are posted by high volume sellers who are selling more than 34 firearms a year without a license. Federal law states that anyone engaged in the business of selling guns must have a Federal Firearms License.

One recommendation among many is for websites to require gun sellers to register with the website before they advertise guns, and for buyers to do the same before purchasing any weapons.