Memory Leak

My code below is causing memory leak. Can someone please have a look at it and give me a solution

NSData *data = [[NSData alloc] initWithContentsOfURL:imgurl];
[fileManager createDirectoryAtPath:imagePath attributes:nil];
[data writeToFile:imageFilePath atomically:NO];
[getProfile setObject:imageFilePath forKey"img"];
[testArray1 addObject:getProfile];
[data release];
[getProfile release];
}

Thanks,
A