On 23 April Moshe Carmel declared Martial Law in the town.
On the same day units from the Irgun moved into parts of downtown Haifa.
Two days later the Haganah forced them to withdraw in a confrontation that resulted in some Irgun casualties.
Some reports speak of looting and attacks on civilians.
Moshe Dayan was appointed to administer abandoned Arab property in the city.
He instituted a policy of collecting anything the army could use and storing it in Zahal warehouses, with the rest distributed among Jewish agricultural settlements.
Golda Meir, who was consulted, agreed with this policy.

15,000 civilians were evacuated from Haifa during 21–22 April.
Leaving some 30–45,000 non-Jewish citizens.
By mid-May only 4,000 from the pre conflict population estimate of 65,000 Palestinian Arabs remained.
These were concentrated in Wadi Nisnas and Wadi Salib whilst the systematic destruction of Arab housing in certain areas was implemented by Haifa's Technical and Urban Development departments in cooperation with the IDF's city commander Ya'akov Lublini.

"general situation Palestine deteriorating rapidly stop government departments closing daily stop and normal activities country coming to a stand still stop the Jewish agency is action as a general organizing body for Palestinian Jewish areas and attempting to replace suspended governmental activities stop Arab areas are depending on municipal authorities within townships and villages without any central authority stop telegraph facilities ceased in most areas as have telephone trunk lines stop telephones still work locally but with decreasing efficiency stop Lydda airport is out of operation and regular air communication and airmail service in and out of country have stopped stop intensity of fighting is increasing steadily stop camps and other important areas vacated by British forces immediately become battle grounds stop operations on larger and more important scale than Haifa expected shortly stop rumors tending to increase the nervous tension in the county.
On 23 April Moshe Carmel declared Martial Law in the town. On the same day units from the Irgun moved into parts of downtown Haifa. Two days later the Haganah forced them to withdraw in a confrontation that resulted in some Irgun casualties. Some reports speak of looting and attacks on civilians. Moshe Dayan was appointed to administer abandoned Arab property in the city. He instituted a policy of collecting anything the army could use and storing it in Zahal warehouses, with the rest distributed among Jewish agricultural settlements. Golda Meir, who was consulted, agreed with this policy.
15,000 civilians were evacuated from Haifa during 21–22 April. Leaving some 30–45,000 non-Jewish citizens. By mid-May only 4,000 from the pre conflict population estimate of 65,000 Palestinian Arabs remained. These were concentrated in Wadi Nisnas and Wadi Salib whilst the systematic destruction of Arab housing in certain areas was implemented by Haifa's Technical and Urban Development departments in cooperation with the IDF's city commander Ya'akov Lublini.
"general situation Palestine deteriorating rapidly stop government departments closing daily stop and normal activities country coming to a stand still stop the Jewish agency is action as a general organizing body for Palestinian Jewish areas and attempting to replace suspended governmental activities stop Arab areas are depending on municipal authorities within townships and villages without any central authority stop telegraph facilities ceased in most areas as have telephone trunk lines stop telephones still work locally but with decreasing efficiency stop Lydda airport is out of operation and regular air communication and airmail service in and out of country have stopped stop intensity of fighting is increasing steadily stop camps and other important areas vacated by British forces immediately become battle grounds stop operations on larger and more important scale than Haifa expected shortly stop rumors tending to increase the nervous tension in the county.
Battle of Haifa (1948)