How to extract latitude and longitude from the response dictionary?

How to extract latitude and longitude from the response dictionary?

My response is
{"Vehicle":[
{"ID":"11","latitude":"8.513333","longitude":"76.969722"},
{"ID":"12","latitude":"8.565","longitude":"76.879722"},
{"ID":"15","latitude":"8.565","longitude":"76.879444"},
{"ID":"16","latitude":"8.543333","longitude":"76.913333"}
]}
How to extract the latitude and longitude of each id separately ? I want
to find the nearest coordinate.