SQL Logs Size Increasing automatically

Hi,

I am facing a very strange issue in my SQL Server 2008 R2 Logs folder.

Actually in every 10 seconds SQLDump0000,SQLDump0001,.....     and so on named files are being created automatically in the Logs folder where SQL stores it's logs.I don't know why is this happening.

Due to this issue logs folder size is increased to 160GB and  my c drive where windows is installed is keep showing Low space message in fact 0MB space is showing.

Please help urgently.