That's impossible. The radiation level from the saucer is rising.
6 seconds sound clip from the The Atomic Submarine movie soundboard.
You can hear this line at 00:52:51 in the DVD version of the movie.
Quote context
[...]
- What's it like inside the Cyclops? This is a priceless opportunity to...
- Doctor, tell Reef to make sure that you're in the clear before we make another move. Right. Over.
- That's impossible. The radiation level from the saucer is rising.
- What direction does the system indicate?
- Due north at five knots. No, six.
- But that Cyclops is dead. We killed it, didn't we?
[...]