Explosion in Tel Aviv; at least 30 people wounded

The explosion occured near the old bus station on Neve Sheanan str. in Tel-Aviv about 1:30 PM.
The reports talk about 30 people wounded.

Update: 4 people killed (so far unconfirmed by police or the ambulance service).
Update 3:00 PM: It is 6 people killed and 40 wounded, several in critical condition.
Update 9:00 PM: It is 9 people killed and approx. 65 wounded, 5 in critical condition.