Date formatter memory leak

Hey, I've been wokring through my app and removing the memory leaks but the below one has me beaten, any help would be much appreciated.

NSDateFormatter* dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setFormatterBehavior:NSDateFormatterBehavior10_4];
[dateFormatter setDateFormat:@"dd/MM/yyyy"];

claim.date = [dateFormatter dateFromString:[data objectForKey:key]];
[dateFormatter release];

The date property is defined as:

@property (nonatomic, retain) NSDate *date

Thanks

Edit:

Forgot to mention where the memory leak occurred, its on line claim.date = [dateFo开发者_开发技巧rmatter dateFromString:[data objectForKey:key]];

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I suspect one or both of the following:

1. The owner of claim never released it
2. The implementation of claim does not send the release message to date in its dealloc and/or does not self.date = nil in the viewDidUnload.